21337216606695 has 32 divisors (see below), whose sum is σ = 37245999571200. Its totient is φ = 10344523293440.

The previous prime is 21337216606583. The next prime is 21337216606703. The reversal of 21337216606695 is 59660661273312.

It is not a de Polignac number, because 21337216606695 - 2¹² = 21337216602599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2801949 + ... + 7108118.

It is an arithmetic number, because the mean of its divisors is an integer number (1163937486600).

Almost surely, 2^{21337216606695} is an apocalyptic number.

21337216606695 is a deficient number, since it is larger than the sum of its proper divisors (15908782964505).

21337216606695 is a wasteful number, since it uses less digits than its factorization.

21337216606695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9923135.

The product of its (nonzero) digits is 14696640, while the sum is 57.

The spelling of 21337216606695 in words is "twenty-one trillion, three hundred thirty-seven billion, two hundred sixteen million, six hundred six thousand, six hundred ninety-five".