551287166160 has 80 divisors (see below), whose sum is σ = 1709112395520. Its totient is φ = 146999400960.

The previous prime is 551287166123. The next prime is 551287166173. The reversal of 551287166160 is 61661782155.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3630970 + ... + 3779750.

It is an arithmetic number, because the mean of its divisors is an integer number (21363904944).

Almost surely, 2^551287166160 is an apocalyptic number.

It is an amenable number.

551287166160 is an abundant number, since it is smaller than the sum of its proper divisors (1157825229360).

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

551287166160 is a wasteful number, since it uses less digits than its factorization.

551287166160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164236 (or 164230 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 551287166160 in words is "five hundred fifty-one billion, two hundred eighty-seven million, one hundred sixty-six thousand, one hundred sixty".