551777130655 has 8 divisors (see below), whose sum is σ = 666896101200. Its totient is φ = 438246008256.

The previous prime is 551777130623. The next prime is 551777130679. The reversal of 551777130655 is 556031777155.

551777130655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551777130655 - 2⁵ = 551777130623 is a prime.

It is a congruent number.

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, 396961270 + ... + 396962659.

It is an arithmetic number, because the mean of its divisors is an integer number (83362012650).

Almost surely, 2^551777130655 is an apocalyptic number.

551777130655 is a deficient number, since it is larger than the sum of its proper divisors (115118970545).

551777130655 is a wasteful number, since it uses less digits than its factorization.

551777130655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793924073.

The product of its (nonzero) digits is 3858750, while the sum is 52.

The spelling of 551777130655 in words is "five hundred fifty-one billion, seven hundred seventy-seven million, one hundred thirty thousand, six hundred fifty-five".