55703876646 has 64 divisors (see below), whose sum is σ = 123556285440. Its totient is φ = 16601609760.

The previous prime is 55703876633. The next prime is 55703876671. The reversal of 55703876646 is 64667830755.

55703876646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 953245 + ... + 1009991.

It is an arithmetic number, because the mean of its divisors is an integer number (1930566960).

Almost surely, 2^55703876646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55703876646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61778142720).

55703876646 is an abundant number, since it is smaller than the sum of its proper divisors (67852408794).

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

55703876646 is a wasteful number, since it uses less digits than its factorization.

55703876646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57009.

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 55703876646 in words is "fifty-five billion, seven hundred three million, eight hundred seventy-six thousand, six hundred forty-six".