55626406616 has 16 divisors (see below), whose sum is σ = 113781286440. Its totient is φ = 25284730240.

The previous prime is 55626406597. The next prime is 55626406631. The reversal of 55626406616 is 61660462655.

It is a super-2 number, since 2×55626406616² (a number of 22 digits) contains 22 as substring.

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, 316059041 + ... + 316059216.

Almost surely, 2^55626406616 is an apocalyptic number.

It is an amenable number.

55626406616 is an abundant number, since it is smaller than the sum of its proper divisors (58154879824).

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

55626406616 is a wasteful number, since it uses less digits than its factorization.

55626406616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632118274 (or 632118270 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 55626406616 in words is "fifty-five billion, six hundred twenty-six million, four hundred six thousand, six hundred sixteen".