21652421136115 has 24 divisors (see below), whose sum is σ = 32972740762032. Its totient is φ = 13497613174080.

The previous prime is 21652421136107. The next prime is 21652421136169. The reversal of 21652421136115 is 51163112425612.

It is not a de Polignac number, because 21652421136115 - 2³ = 21652421136107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4017144084 + ... + 4017149473.

It is an arithmetic number, because the mean of its divisors is an integer number (1373864198418).

Almost surely, 2^{21652421136115} is an apocalyptic number.

21652421136115 is a deficient number, since it is larger than the sum of its proper divisors (11320319625917).

21652421136115 is a wasteful number, since it uses less digits than its factorization.

21652421136115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8034293587 (or 8034293580 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The spelling of 21652421136115 in words is "twenty-one trillion, six hundred fifty-two billion, four hundred twenty-one million, one hundred thirty-six thousand, one hundred fifteen".