551320344153 has 24 divisors (see below), whose sum is σ = 797530206720. Its totient is φ = 367003327680.

The previous prime is 551320344149. The next prime is 551320344173. The reversal of 551320344153 is 351443023155.

551320344153 is a `hidden beast` number, since 5 + 5 + 1 + 3 + 203 + 441 + 5 + 3 = 666.

It is not a de Polignac number, because 551320344153 - 2² = 551320344149 is a prime.

It is a super-2 number, since 2×551320344153² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (551320344103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18101848 + ... + 18132278.

It is an arithmetic number, because the mean of its divisors is an integer number (33230425280).

Almost surely, 2^551320344153 is an apocalyptic number.

It is an amenable number.

551320344153 is a deficient number, since it is larger than the sum of its proper divisors (246209862567).

551320344153 is a wasteful number, since it uses less digits than its factorization.

551320344153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33349 (or 33346 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 551320344153 in words is "five hundred fifty-one billion, three hundred twenty million, three hundred forty-four thousand, one hundred fifty-three".