505106561100 has 36 divisors (see below), whose sum is σ = 1461441650984. Its totient is φ = 134695082880.

The previous prime is 505106561081. The next prime is 505106561111. The reversal of 505106561100 is 1165601505.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 841843969 + ... + 841844568.

Almost surely, 2^505106561100 is an apocalyptic number.

505106561100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505106561100 is an abundant number, since it is smaller than the sum of its proper divisors (956335089884).

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

505106561100 is a wasteful number, since it uses less digits than its factorization.

505106561100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683688554 (or 1683688547 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 505106561100 in words is "five hundred five billion, one hundred six million, five hundred sixty-one thousand, one hundred".