55721830676 has 12 divisors (see below), whose sum is σ = 97524456372. Its totient is φ = 27857700288.

The previous prime is 55721830663. The next prime is 55721830721. The reversal of 55721830676 is 67603812755.

55721830676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51026292100 + 4695538576 = 225890^2 + 68524^2 .

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, 764555 + ... + 834258.

It is an arithmetic number, because the mean of its divisors is an integer number (8127038031).

Almost surely, 2^55721830676 is an apocalyptic number.

It is an amenable number.

55721830676 is a deficient number, since it is larger than the sum of its proper divisors (41802625696).

55721830676 is a wasteful number, since it uses less digits than its factorization.

55721830676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607530 (or 1607528 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 55721830676 in words is "fifty-five billion, seven hundred twenty-one million, eight hundred thirty thousand, six hundred seventy-six".