61152057071556 has 24 divisors (see below), whose sum is σ = 155659781637024. Its totient is φ = 18530926385280.

The previous prime is 61152057071533. The next prime is 61152057071593. The reversal of 61152057071556 is 65517075025116.

It is a super-2 number, since 2×61152057071556² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61152057071499 and 61152057071508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231636579685 + ... + 231636579948.

It is an arithmetic number, because the mean of its divisors is an integer number (6485824234876).

Almost surely, 2^{61152057071556} is an apocalyptic number.

61152057071556 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61152057071556 is an abundant number, since it is smaller than the sum of its proper divisors (94507724565468).

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

61152057071556 is a wasteful number, since it uses less digits than its factorization.

61152057071556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463273159651 (or 463273159649 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 51.

The spelling of 61152057071556 in words is "sixty-one trillion, one hundred fifty-two billion, fifty-seven million, seventy-one thousand, five hundred fifty-six".