55187982366 has 16 divisors (see below), whose sum is σ = 120410143488. Its totient is φ = 16723631000.

The previous prime is 55187982337. The next prime is 55187982371. The reversal of 55187982366 is 66328978155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418090710 + ... + 418090841.

It is an arithmetic number, because the mean of its divisors is an integer number (7525633968).

Almost surely, 2^55187982366 is an apocalyptic number.

55187982366 is an abundant number, since it is smaller than the sum of its proper divisors (65222161122).

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

55187982366 is a wasteful number, since it uses less digits than its factorization.

55187982366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836181567.

The product of its digits is 21772800, while the sum is 60.

The spelling of 55187982366 in words is "fifty-five billion, one hundred eighty-seven million, nine hundred eighty-two thousand, three hundred sixty-six".