61477015152 has 80 divisors (see below), whose sum is σ = 182889222912. Its totient is φ = 17430766080.

The previous prime is 61477015141. The next prime is 61477015217. The reversal of 61477015152 is 25151077416.

It is a self number, because there is not a number n which added to its sum of digits gives 61477015152.

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, 654333 + ... + 742364.

Almost surely, 2^61477015152 is an apocalyptic number.

It is an amenable number.

61477015152 is an abundant number, since it is smaller than the sum of its proper divisors (121412207760).

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

61477015152 is a wasteful number, since it uses less digits than its factorization.

61477015152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396846 (or 1396840 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 61477015152 in words is "sixty-one billion, four hundred seventy-seven million, fifteen thousand, one hundred fifty-two".