505869165527 has 32 divisors (see below), whose sum is σ = 566610059520. Its totient is φ = 447743296000.

The previous prime is 505869165511. The next prime is 505869165553. The reversal of 505869165527 is 725561968505.

It is not a de Polignac number, because 505869165527 - 2⁴ = 505869165511 is a prime.

It is a super-2 number, since 2×505869165527² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505869165227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176814077 + ... + 176816937.

It is an arithmetic number, because the mean of its divisors is an integer number (17706564360).

Almost surely, 2^505869165527 is an apocalyptic number.

505869165527 is a deficient number, since it is larger than the sum of its proper divisors (60740893993).

505869165527 is a wasteful number, since it uses less digits than its factorization.

505869165527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455.

The product of its (nonzero) digits is 22680000, while the sum is 59.

The spelling of 505869165527 in words is "five hundred five billion, eight hundred sixty-nine million, one hundred sixty-five thousand, five hundred twenty-seven".