61135022020156 has 12 divisors (see below), whose sum is σ = 122270044040368. Its totient is φ = 26200723722912.

The previous prime is 61135022020103. The next prime is 61135022020199. The reversal of 61135022020156 is 65102022053116.

61135022020156 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091696821761 + ... + 1091696821816.

Almost surely, 2^{61135022020156} is an apocalyptic number.

It is an amenable number.

61135022020156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61135022020156 is a wasteful number, since it uses less digits than its factorization.

61135022020156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183393643588 (or 2183393643586 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 61135022020156 in words is "sixty-one trillion, one hundred thirty-five billion, twenty-two million, twenty thousand, one hundred fifty-six".