61026757255660 has 48 divisors (see below), whose sum is σ = 146466203030784. Its totient is φ = 20923175971008.

The previous prime is 61026757255589. The next prime is 61026757255817. The reversal of 61026757255660 is 6655275762016.

It is a happy number.

It is a super-2 number, since 2×61026757255660² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61026757255595 and 61026757255604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7541547 + ... + 13376413.

It is an arithmetic number, because the mean of its divisors is an integer number (3051379229808).

Almost surely, 2^{61026757255660} is an apocalyptic number.

It is an amenable number.

61026757255660 is an abundant number, since it is smaller than the sum of its proper divisors (85439445775124).

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

61026757255660 is a wasteful number, since it uses less digits than its factorization.

61026757255660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909590 (or 5909588 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 58.

The spelling of 61026757255660 in words is "sixty-one trillion, twenty-six billion, seven hundred fifty-seven million, two hundred fifty-five thousand, six hundred sixty".