21715104067062 has 16 divisors (see below), whose sum is σ = 49634523581952. Its totient is φ = 6204315447720.

The previous prime is 21715104067031. The next prime is 21715104067087. The reversal of 21715104067062 is 26076040151712.

It is a super-2 number, since 2×21715104067062² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 517026287311 = 21715104067062 / (2 + 1 + 7 + 1 + 5 + 1 + 0 + 4 + 0 + 6 + 7 + 0 + 6 + 2).

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, 258513143614 + ... + 258513143697.

It is an arithmetic number, because the mean of its divisors is an integer number (3102157723872).

Almost surely, 2^{21715104067062} is an apocalyptic number.

21715104067062 is an abundant number, since it is smaller than the sum of its proper divisors (27919419514890).

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

21715104067062 is a wasteful number, since it uses less digits than its factorization.

21715104067062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517026287323.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 21715104067062 in words is "twenty-one trillion, seven hundred fifteen billion, one hundred four million, sixty-seven thousand, sixty-two".