21716541211630 has 32 divisors (see below), whose sum is σ = 39262564684800. Its totient is φ = 8648235698592.

The previous prime is 21716541211627. The next prime is 21716541211699. The reversal of 21716541211630 is 3611214561712.

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, 9112279 + ... + 11245741.

It is an arithmetic number, because the mean of its divisors is an integer number (1226955146400).

Almost surely, 2^{21716541211630} is an apocalyptic number.

21716541211630 is a deficient number, since it is larger than the sum of its proper divisors (17546023473170).

21716541211630 is a wasteful number, since it uses less digits than its factorization.

21716541211630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137968.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 21716541211630 in words is "twenty-one trillion, seven hundred sixteen billion, five hundred forty-one million, two hundred eleven thousand, six hundred thirty".