21622420015504 has 40 divisors (see below), whose sum is σ = 52230780819648. Its totient is φ = 8424319486080.

The previous prime is 21622420015489. The next prime is 21622420015519. The reversal of 21622420015504 is 40551002422612.

It is an interprime number because it is at equal distance from previous prime (21622420015489) and next prime (21622420015519).

It is a self number, because there is not a number n which added to its sum of digits gives 21622420015504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8775331567 + ... + 8775334030.

Almost surely, 2^{21622420015504} is an apocalyptic number.

It is an amenable number.

21622420015504 is an abundant number, since it is smaller than the sum of its proper divisors (30608360804144).

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

21622420015504 is a wasteful number, since it uses less digits than its factorization.

21622420015504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17550665623 (or 17550665617 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 21622420015504 in words is "twenty-one trillion, six hundred twenty-two billion, four hundred twenty million, fifteen thousand, five hundred four".