21465134225006 has 16 divisors (see below), whose sum is σ = 33088615931616. Its totient is φ = 10435958852256.

The previous prime is 21465134224949. The next prime is 21465134225033. The reversal of 21465134225006 is 60052243156412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90698786 + ... + 90935141.

It is an arithmetic number, because the mean of its divisors is an integer number (2068038495726).

Almost surely, 2^{21465134225006} is an apocalyptic number.

21465134225006 is a deficient number, since it is larger than the sum of its proper divisors (11623481706610).

21465134225006 is a wasteful number, since it uses less digits than its factorization.

21465134225006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181635563.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 21465134225006 in words is "twenty-one trillion, four hundred sixty-five billion, one hundred thirty-four million, two hundred twenty-five thousand, six".