61026757255656 has 128 divisors (see below), whose sum is σ = 170805672432000. Its totient is φ = 20187910319616.

The previous prime is 61026757255589. The next prime is 61026757255817. The reversal of 61026757255656 is 65655275762016.

61026757255656 is a `hidden beast` number, since 6 + 1 + 0 + 2 + 6 + 7 + 5 + 72 + 556 + 5 + 6 = 666.

It is a super-2 number, since 2×61026757255656² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61026757255593 and 61026757255602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102298050 + ... + 102892878.

It is an arithmetic number, because the mean of its divisors is an integer number (1334419315875).

Almost surely, 2^{61026757255656} 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 61026757255656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85402836216000).

61026757255656 is an abundant number, since it is smaller than the sum of its proper divisors (109778915176344).

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

61026757255656 is a wasteful number, since it uses less digits than its factorization.

61026757255656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598448 (or 598438 counting only the distinct ones).

The product of its (nonzero) digits is 158760000, while the sum is 63.

The spelling of 61026757255656 in words is "sixty-one trillion, twenty-six billion, seven hundred fifty-seven million, two hundred fifty-five thousand, six hundred fifty-six".