61401502344156 has 48 divisors (see below), whose sum is σ = 163366893121824. Its totient is φ = 17781430542336.

The previous prime is 61401502344137. The next prime is 61401502344167. The reversal of 61401502344156 is 65144320510416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11576449525 + ... + 11576454828.

It is an arithmetic number, because the mean of its divisors is an integer number (3403476940038).

Almost surely, 2^{61401502344156} is an apocalyptic number.

It is an amenable number.

61401502344156 is an abundant number, since it is smaller than the sum of its proper divisors (101965390777668).

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

61401502344156 is a wasteful number, since it uses less digits than its factorization.

61401502344156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23152904390 (or 23152904388 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 61401502344156 in words is "sixty-one trillion, four hundred one billion, five hundred two million, three hundred forty-four thousand, one hundred fifty-six".