55667819580 has 48 divisors (see below), whose sum is σ = 156027346944. Its totient is φ = 14829756480.

The previous prime is 55667819561. The next prime is 55667819639. The reversal of 55667819580 is 8591876655.

55667819580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55667819580² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 408652 + ... + 527571.

It is an arithmetic number, because the mean of its divisors is an integer number (3250569728).

Almost surely, 2^55667819580 is an apocalyptic number.

It is an amenable number.

55667819580 is an abundant number, since it is smaller than the sum of its proper divisors (100359527364).

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

55667819580 is a wasteful number, since it uses less digits than its factorization.

55667819580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937226 (or 937224 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 60.

The spelling of 55667819580 in words is "fifty-five billion, six hundred sixty-seven million, eight hundred nineteen thousand, five hundred eighty".