21627020071615 has 32 divisors (see below), whose sum is σ = 31048991041536. Its totient is φ = 14139564236160.

The previous prime is 21627020071609. The next prime is 21627020071663. The reversal of 21627020071615 is 51617002072612.

It is not a de Polignac number, because 21627020071615 - 2⁹ = 21627020071103 is a prime.

It is a Duffinian number.

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, 42942352 + ... + 43443061.

It is an arithmetic number, because the mean of its divisors is an integer number (970280970048).

Almost surely, 2^{21627020071615} is an apocalyptic number.

21627020071615 is a deficient number, since it is larger than the sum of its proper divisors (9421970969921).

21627020071615 is a wasteful number, since it uses less digits than its factorization.

21627020071615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86385759.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 21627020071615 in words is "twenty-one trillion, six hundred twenty-seven billion, twenty million, seventy-one thousand, six hundred fifteen".