620746269596640 has 576 divisors, whose sum is σ = 2447987532157440. Its totient is φ = 141655676497920.

The previous prime is 620746269596611. The next prime is 620746269596647. The reversal of 620746269596640 is 46695962647026.

620746269596640 is a `hidden beast` number, since 6 + 2 + 0 + 7 + 4 + 6 + 26 + 9 + 596 + 6 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620746269596647) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40682077 + ... + 53819363.

It is an arithmetic number, because the mean of its divisors is an integer number (4249978354440).

Almost surely, 2^{620746269596640} is an apocalyptic number.

620746269596640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620746269596640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223993766078720).

620746269596640 is an abundant number, since it is smaller than the sum of its proper divisors (1827241262560800).

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

620746269596640 is a wasteful number, since it uses less digits than its factorization.

620746269596640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13137495 (or 13137484 counting only the distinct ones).

The product of its (nonzero) digits is 1410877440, while the sum is 72.

The spelling of 620746269596640 in words is "six hundred twenty trillion, seven hundred forty-six billion, two hundred sixty-nine million, five hundred ninety-six thousand, six hundred forty".