61995860361 has 24 divisors (see below), whose sum is σ = 94292744000. Its totient is φ = 39142805472.

The previous prime is 61995860327. The next prime is 61995860369. The reversal of 61995860361 is 16306859916.

It is not a de Polignac number, because 61995860361 - 2²⁶ = 61928751497 is a prime.

It is a super-2 number, since 2×61995860361² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61995860298 and 61995860307.

It is not an unprimeable number, because it can be changed into a prime (61995860369) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 496020 + ... + 608298.

Almost surely, 2^61995860361 is an apocalyptic number.

It is an amenable number.

61995860361 is a deficient number, since it is larger than the sum of its proper divisors (32296883639).

61995860361 is a wasteful number, since it uses less digits than its factorization.

61995860361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115533 (or 115530 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 61995860361 in words is "sixty-one billion, nine hundred ninety-five million, eight hundred sixty thousand, three hundred sixty-one".