61040133515364 has 24 divisors (see below), whose sum is σ = 144229851346560. Its totient is φ = 20089157865504.

The previous prime is 61040133515353. The next prime is 61040133515377. The reversal of 61040133515364 is 46351533104016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32194162299 + ... + 32194164194.

It is an arithmetic number, because the mean of its divisors is an integer number (6009577139440).

Almost surely, 2^{61040133515364} is an apocalyptic number.

It is an amenable number.

61040133515364 is an abundant number, since it is smaller than the sum of its proper divisors (83189717831196).

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

61040133515364 is a wasteful number, since it uses less digits than its factorization.

61040133515364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64388326579 (or 64388326577 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 61040133515364 in words is "sixty-one trillion, forty billion, one hundred thirty-three million, five hundred fifteen thousand, three hundred sixty-four".