505623201612 has 12 divisors (see below), whose sum is σ = 1179787470456. Its totient is φ = 168541067200.

The previous prime is 505623201541. The next prime is 505623201617. The reversal of 505623201612 is 216102326505.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (505623201617) 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, 21067633389 + ... + 21067633412.

It is an arithmetic number, because the mean of its divisors is an integer number (98315622538).

Almost surely, 2^505623201612 is an apocalyptic number.

It is an amenable number.

505623201612 is an abundant number, since it is smaller than the sum of its proper divisors (674164268844).

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

505623201612 is a wasteful number, since it uses less digits than its factorization.

505623201612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42135266808 (or 42135266806 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 505623201612 in words is "five hundred five billion, six hundred twenty-three million, two hundred one thousand, six hundred twelve".