505562164631 has 4 divisors (see below), whose sum is σ = 505774320672. Its totient is φ = 505350008592.

The previous prime is 505562164607. The next prime is 505562164661. The reversal of 505562164631 is 136461265505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505562164631 - 2¹⁰ = 505562163607 is a prime.

It is a super-2 number, since 2×505562164631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505562164661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106074446 + ... + 106079211.

It is an arithmetic number, because the mean of its divisors is an integer number (126443580168).

Almost surely, 2^505562164631 is an apocalyptic number.

505562164631 is a deficient number, since it is larger than the sum of its proper divisors (212156041).

505562164631 is a wasteful number, since it uses less digits than its factorization.

505562164631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212156040.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 505562164631 in words is "five hundred five billion, five hundred sixty-two million, one hundred sixty-four thousand, six hundred thirty-one".