61000665107056 has 40 divisors (see below), whose sum is σ = 124410791822720. Its totient is φ = 28894694072256.

The previous prime is 61000665107029. The next prime is 61000665107059. The reversal of 61000665107056 is 65070156600016.

It is a super-2 number, since 2×61000665107056² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61000665107059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24202501 + ... + 26603803.

It is an arithmetic number, because the mean of its divisors is an integer number (3110269795568).

Almost surely, 2^{61000665107056} is an apocalyptic number.

It is an amenable number.

61000665107056 is an abundant number, since it is smaller than the sum of its proper divisors (63410126715664).

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

61000665107056 is a wasteful number, since it uses less digits than its factorization.

61000665107056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484893 (or 2484887 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 61000665107056 in words is "sixty-one trillion, six hundred sixty-five million, one hundred seven thousand, fifty-six".