21622073053671 has 24 divisors (see below), whose sum is σ = 31777143287760. Its totient is φ = 14163301622016.

The previous prime is 21622073053649. The next prime is 21622073053673. The reversal of 21622073053671 is 17635037022612.

21622073053671 is a `hidden beast` number, since 2 + 1 + 62 + 20 + 7 + 30 + 536 + 7 + 1 = 666.

It is not a de Polignac number, because 21622073053671 - 2⁷ = 21622073053543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21622073053673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9134770 + ... + 11255583.

It is an arithmetic number, because the mean of its divisors is an integer number (1324047636990).

Almost surely, 2^{21622073053671} is an apocalyptic number.

21622073053671 is a deficient number, since it is larger than the sum of its proper divisors (10155070234089).

21622073053671 is a wasteful number, since it uses less digits than its factorization.

21622073053671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20392415 (or 20392412 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 21622073053671 in words is "twenty-one trillion, six hundred twenty-two billion, seventy-three million, fifty-three thousand, six hundred seventy-one".