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61650899372 = 22120112833243
BaseRepresentation
bin111001011010101011…
…100001000110101100
312220010120001011221102
4321122223201012230
52002230112234442
644153320422232
74311523666256
oct713253410654
9186116034842
1061650899372
1124167364207
12bb46917978
135a767a481a
142dabc36cd6
15190c658232
hexe5aae11ac

61650899372 has 12 divisors (see below), whose sum is σ = 107978915016. Its totient is φ = 30799780800.

The previous prime is 61650899369. The next prime is 61650899377. The reversal of 61650899372 is 27399805616.

It is a happy number.

61650899372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61650899377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6411818 + ... + 6421425.

It is an arithmetic number, because the mean of its divisors is an integer number (8998242918).

Almost surely, 261650899372 is an apocalyptic number.

It is an amenable number.

61650899372 is a deficient number, since it is larger than the sum of its proper divisors (46328015644).

61650899372 is a wasteful number, since it uses less digits than its factorization.

61650899372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12834448 (or 12834446 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 61650899372 in words is "sixty-one billion, six hundred fifty million, eight hundred ninety-nine thousand, three hundred seventy-two".

Divisors: 1 2 4 1201 2402 4804 12833243 25666486 51332972 15412724843 30825449686 61650899372