61051371614664 has 32 divisors (see below), whose sum is σ = 157551926749440. Its totient is φ = 19693990843200.

The previous prime is 61051371614659. The next prime is 61051371614669. The reversal of 61051371614664 is 46641617315016.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61051371614659) and next prime (61051371614669).

It is not an unprimeable number, because it can be changed into a prime (61051371614669) 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, 41029146847 + ... + 41029148334.

It is an arithmetic number, because the mean of its divisors is an integer number (4923497710920).

Almost surely, 2^{61051371614664} is an apocalyptic number.

It is an amenable number.

61051371614664 is an abundant number, since it is smaller than the sum of its proper divisors (96500555134776).

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

61051371614664 is a wasteful number, since it uses less digits than its factorization.

61051371614664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82058295221 (or 82058295217 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 61051371614664 in words is "sixty-one trillion, fifty-one billion, three hundred seventy-one million, six hundred fourteen thousand, six hundred sixty-four".