21622674557505 has 16 divisors (see below), whose sum is σ = 39538604905344. Its totient is φ = 9884651226240.

The previous prime is 21622674557489. The next prime is 21622674557537. The reversal of 21622674557505 is 50575547622612.

It is not a de Polignac number, because 21622674557505 - 2⁴ = 21622674557489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102965116836 + ... + 102965117045.

It is an arithmetic number, because the mean of its divisors is an integer number (2471162806584).

Almost surely, 2^{21622674557505} is an apocalyptic number.

It is an amenable number.

21622674557505 is a deficient number, since it is larger than the sum of its proper divisors (17915930347839).

21622674557505 is a wasteful number, since it uses less digits than its factorization.

21622674557505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205930233896.

The product of its (nonzero) digits is 35280000, while the sum is 57.

The spelling of 21622674557505 in words is "twenty-one trillion, six hundred twenty-two billion, six hundred seventy-four million, five hundred fifty-seven thousand, five hundred five".