551872233612 has 120 divisors (see below), whose sum is σ = 1654631548416. Its totient is φ = 157120432992.

The previous prime is 551872233607. The next prime is 551872233637. The reversal of 551872233612 is 216332278155.

551872233612 is a `hidden beast` number, since 5 + 5 + 1 + 8 + 7 + 2 + 23 + 3 + 612 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 211933 + ... + 1071755.

Almost surely, 2^551872233612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551872233612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827315774208).

551872233612 is an abundant number, since it is smaller than the sum of its proper divisors (1102759314804).

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

551872233612 is a wasteful number, since it uses less digits than its factorization.

551872233612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860129 (or 860118 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The spelling of 551872233612 in words is "five hundred fifty-one billion, eight hundred seventy-two million, two hundred thirty-three thousand, six hundred twelve".