55016665506 has 96 divisors (see below), whose sum is σ = 141457310400. Its totient is φ = 15794222400.

The previous prime is 55016665481. The next prime is 55016665541. The reversal of 55016665506 is 60556661055.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97435 + ... + 345726.

It is an arithmetic number, because the mean of its divisors is an integer number (1473513650).

Almost surely, 2^55016665506 is an apocalyptic number.

55016665506 is an abundant number, since it is smaller than the sum of its proper divisors (86440644894).

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

55016665506 is a wasteful number, since it uses less digits than its factorization.

55016665506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443213 (or 443196 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 55016665506 in words is "fifty-five billion, sixteen million, six hundred sixty-five thousand, five hundred six".