2521664402411 has 32 divisors (see below), whose sum is σ = 3247478784000. Its totient is φ = 1900277114400.

The previous prime is 2521664402351. The next prime is 2521664402441. The reversal of 2521664402411 is 1142044661252.

It is not a de Polignac number, because 2521664402411 - 2³⁰ = 2520590660587 is a prime.

It is a super-2 number, since 2×2521664402411² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2521664402441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3225740 + ... + 3930486.

It is an arithmetic number, because the mean of its divisors is an integer number (101483712000).

Almost surely, 2^{2521664402411} is an apocalyptic number.

2521664402411 is a deficient number, since it is larger than the sum of its proper divisors (725814381589).

2521664402411 is a wasteful number, since it uses less digits than its factorization.

2521664402411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706295.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 2521664402411 in words is "two trillion, five hundred twenty-one billion, six hundred sixty-four million, four hundred two thousand, four hundred eleven".