61611052574504 has 16 divisors (see below), whose sum is σ = 117978611313600. Its totient is φ = 30150089557552.

The previous prime is 61611052574503. The next prime is 61611052574569. The reversal of 61611052574504 is 40547525011616.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (61611052574503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81929590814 + ... + 81929591565.

It is an arithmetic number, because the mean of its divisors is an integer number (7373663207100).

Almost surely, 2^{61611052574504} is an apocalyptic number.

It is an amenable number.

61611052574504 is a deficient number, since it is larger than the sum of its proper divisors (56367558739096).

61611052574504 is a wasteful number, since it uses less digits than its factorization.

61611052574504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163859182432 (or 163859182428 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 61611052574504 in words is "sixty-one trillion, six hundred eleven billion, fifty-two million, five hundred seventy-four thousand, five hundred four".