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64152663645056 = 2771721117221797
BaseRepresentation
bin11101001011000101101001…
…01110100101101110000000
322102010221020102122220212112
432211202310232211232000
531402034123343120211
6344235154332114452
716340606544502040
oct1645426456455600
9272127212586775
1064152663645056
1119493aa0197878
127241271305a28
1329a4754a213bc
1411bb0110b5720
15763b583e088b
hex3a58b4ba5b80

64152663645056 has 192 divisors, whose sum is σ = 155298754309920. Its totient is φ = 25853421846528.

The previous prime is 64152663645053. The next prime is 64152663645089. The reversal of 64152663645056 is 65054636625146.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64152663644986 and 64152663645004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64152663645053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289129550 + ... + 289351346.

Almost surely, 264152663645056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64152663645056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77649377154960).

64152663645056 is an abundant number, since it is smaller than the sum of its proper divisors (91146090664864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64152663645056 is a wasteful number, since it uses less digits than its factorization.

64152663645056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222969 (or 222940 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 59.

The spelling of 64152663645056 in words is "sixty-four trillion, one hundred fifty-two billion, six hundred sixty-three million, six hundred forty-five thousand, fifty-six".