100450312236561 has 16 divisors (see below), whose sum is σ = 153477510141824. Its totient is φ = 57246290538624.

The previous prime is 100450312236551. The next prime is 100450312236563. The reversal of 100450312236561 is 165632213054001.

It is a happy number.

It is not a de Polignac number, because 100450312236561 - 2³³ = 100441722301969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100450312236563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6411987076 + ... + 6412002741.

It is an arithmetic number, because the mean of its divisors is an integer number (9592344383864).

Almost surely, 2^{100450312236561} is an apocalyptic number.

It is an amenable number.

100450312236561 is a deficient number, since it is larger than the sum of its proper divisors (53027197905263).

100450312236561 is a wasteful number, since it uses less digits than its factorization.

100450312236561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12823990200.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 100450312236561 in words is "one hundred trillion, four hundred fifty billion, three hundred twelve million, two hundred thirty-six thousand, five hundred sixty-one".