61008855776 has 24 divisors (see below), whose sum is σ = 131030384184. Its totient is φ = 27731297920.

The previous prime is 61008855751. The next prime is 61008855871. The reversal of 61008855776 is 67755880016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86659955 + ... + 86660658.

It is an arithmetic number, because the mean of its divisors is an integer number (5459599341).

Almost surely, 2^61008855776 is an apocalyptic number.

It is an amenable number.

61008855776 is an abundant number, since it is smaller than the sum of its proper divisors (70021528408).

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

61008855776 is a wasteful number, since it uses less digits than its factorization.

61008855776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173320634 (or 173320626 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 53.

The spelling of 61008855776 in words is "sixty-one billion, eight million, eight hundred fifty-five thousand, seven hundred seventy-six".