61156111165116 has 48 divisors (see below), whose sum is σ = 155829436277760. Its totient is φ = 18513186430720.

The previous prime is 61156111165109. The next prime is 61156111165139.

61156111165116 is nontrivially palindromic in base 10.

It is a congruent number.

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, 236976396 + ... + 237234323.

It is an arithmetic number, because the mean of its divisors is an integer number (3246446589120).

Almost surely, 2^{61156111165116} is an apocalyptic number.

61156111165116 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61156111165116 is an abundant number, since it is smaller than the sum of its proper divisors (94673325112644).

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

61156111165116 is a wasteful number, since it uses less digits than its factorization.

61156111165116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474211714 (or 474211712 counting only the distinct ones).

The product of its digits is 32400, while the sum is 42.

The spelling of 61156111165116 in words is "sixty-one trillion, one hundred fifty-six billion, one hundred eleven million, one hundred sixty-five thousand, one hundred sixteen".