21250324606401 has 48 divisors (see below), whose sum is σ = 35248877015040. Its totient is φ = 12200752280160.

The previous prime is 21250324606393. The next prime is 21250324606409. The reversal of 21250324606401 is 10460642305212.

21250324606401 is a `hidden beast` number, since 2 + 1 + 2 + 5 + 0 + 3 + 2 + 4 + 6 + 0 + 640 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (21250324606393) and next prime (21250324606409).

It is not a de Polignac number, because 21250324606401 - 2³ = 21250324606393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21250324606409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64706256 + ... + 65033838.

It is an arithmetic number, because the mean of its divisors is an integer number (734351604480).

Almost surely, 2^{21250324606401} is an apocalyptic number.

It is an amenable number.

21250324606401 is a deficient number, since it is larger than the sum of its proper divisors (13998552408639).

21250324606401 is a wasteful number, since it uses less digits than its factorization.

21250324606401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362106 (or 362103 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 21250324606401 in words is "twenty-one trillion, two hundred fifty billion, three hundred twenty-four million, six hundred six thousand, four hundred one".