21610520088 has 32 divisors (see below), whose sum is σ = 57204318960. Its totient is φ = 6779770880.

The previous prime is 21610520069. The next prime is 21610520101. The reversal of 21610520088 is 88002501612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26483073 + ... + 26483888.

Almost surely, 2^21610520088 is an apocalyptic number.

It is an amenable number.

21610520088 is an abundant number, since it is smaller than the sum of its proper divisors (35593798872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21610520088 is a wasteful number, since it uses less digits than its factorization.

21610520088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52966987 (or 52966983 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 21610520088 in words is "twenty-one billion, six hundred ten million, five hundred twenty thousand, eighty-eight".