21377416135 has 16 divisors (see below), whose sum is σ = 27021836160. Its totient is φ = 16190560800.

The previous prime is 21377416129. The next prime is 21377416169. The reversal of 21377416135 is 53161477312.

It is not a de Polignac number, because 21377416135 - 2¹¹ = 21377414087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60304 + ... + 215386.

It is an arithmetic number, because the mean of its divisors is an integer number (1688864760).

Almost surely, 2^21377416135 is an apocalyptic number.

21377416135 is a deficient number, since it is larger than the sum of its proper divisors (5644420025).

21377416135 is a wasteful number, since it uses less digits than its factorization.

21377416135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156558.

The product of its digits is 105840, while the sum is 40.

The spelling of 21377416135 in words is "twenty-one billion, three hundred seventy-seven million, four hundred sixteen thousand, one hundred thirty-five".