21116150664630 has 64 divisors (see below), whose sum is σ = 60966931253760. Its totient is φ = 4572519842304.

The previous prime is 21116150664629. The next prime is 21116150664709. The reversal of 21116150664630 is 3646605161112.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 2646130179 + ... + 2646138158.

It is an arithmetic number, because the mean of its divisors is an integer number (952608300840).

Almost surely, 2^{21116150664630} is an apocalyptic number.

21116150664630 is an abundant number, since it is smaller than the sum of its proper divisors (39850780589130).

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

21116150664630 is a wasteful number, since it uses less digits than its factorization.

21116150664630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5292268373.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 21116150664630 in words is "twenty-one trillion, one hundred sixteen billion, one hundred fifty million, six hundred sixty-four thousand, six hundred thirty".