55212177712000 has 64 divisors (see below), whose sum is σ = 137271276876240. Its totient is φ = 22084871078400.

The previous prime is 55212177711937. The next prime is 55212177712049. The reversal of 55212177712000 is 21777121255.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1725364554 + ... + 1725396553.

Almost surely, 2^{55212177712000} is an apocalyptic number.

55212177712000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55212177712000 is an abundant number, since it is smaller than the sum of its proper divisors (82059099164240).

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

55212177712000 is an equidigital number, since it uses as much as digits as its factorization.

55212177712000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3450761136 (or 3450761114 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 40.

The spelling of 55212177712000 in words is "fifty-five trillion, two hundred twelve billion, one hundred seventy-seven million, seven hundred twelve thousand".