551305105764 has 24 divisors (see below), whose sum is σ = 1470146948928. Its totient is φ = 157515744480.

The previous prime is 551305105697. The next prime is 551305105811. The reversal of 551305105764 is 467501503155.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 3281577927 + ... + 3281578094.

It is an arithmetic number, because the mean of its divisors is an integer number (61256122872).

Almost surely, 2^551305105764 is an apocalyptic number.

It is an amenable number.

551305105764 is an abundant number, since it is smaller than the sum of its proper divisors (918841843164).

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

551305105764 is a wasteful number, since it uses less digits than its factorization.

551305105764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6563156035 (or 6563156033 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 42.

The spelling of 551305105764 in words is "five hundred fifty-one billion, three hundred five million, one hundred five thousand, seven hundred sixty-four".