21750150716 has 24 divisors (see below), whose sum is σ = 43503709536. Its totient is φ = 9320762880.

The previous prime is 21750150701. The next prime is 21750150731. The reversal of 21750150716 is 61705105712.

It is an interprime number because it is at equal distance from previous prime (21750150701) and next prime (21750150731).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488756 + ... + 531396.

It is an arithmetic number, because the mean of its divisors is an integer number (1812654564).

Almost surely, 2^21750150716 is an apocalyptic number.

It is an amenable number.

21750150716 is an abundant number, since it is smaller than the sum of its proper divisors (21753558820).

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

21750150716 is a wasteful number, since it uses less digits than its factorization.

21750150716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60869 (or 60867 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 21750150716 in words is "twenty-one billion, seven hundred fifty million, one hundred fifty thousand, seven hundred sixteen".