55211766672 has 40 divisors (see below), whose sum is σ = 142647343200. Its totient is φ = 18401735680.

The previous prime is 55211766671. The next prime is 55211766697. The reversal of 55211766672 is 27666711255.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (55211766671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368704 + ... + 496352.

It is an arithmetic number, because the mean of its divisors is an integer number (3566183580).

Almost surely, 2^55211766672 is an apocalyptic number.

It is an amenable number.

55211766672 is an abundant number, since it is smaller than the sum of its proper divisors (87435576528).

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

55211766672 is a wasteful number, since it uses less digits than its factorization.

55211766672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136671 (or 136665 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The spelling of 55211766672 in words is "fifty-five billion, two hundred eleven million, seven hundred sixty-six thousand, six hundred seventy-two".