21716356372014 has 8 divisors (see below), whose sum is σ = 43432712744040. Its totient is φ = 7238785457336.

The previous prime is 21716356371977. The next prime is 21716356372049. The reversal of 21716356372014 is 41027365361712.

It is a sphenic number, since it is the product of 3 distinct primes.

21716356372014 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809696364329 + ... + 1809696364340.

It is an arithmetic number, because the mean of its divisors is an integer number (5429089093005).

Almost surely, 2^{21716356372014} is an apocalyptic number.

21716356372014 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21716356372014 is a wasteful number, since it uses less digits than its factorization.

21716356372014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619392728674.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 21716356372014 in words is "twenty-one trillion, seven hundred sixteen billion, three hundred fifty-six million, three hundred seventy-two thousand, fourteen".