21622073057445 has 64 divisors (see below), whose sum is σ = 39914925465600. Its totient is φ = 9790057778688.

The previous prime is 21622073057419. The next prime is 21622073057471. The reversal of 21622073057445 is 54475037022612.

It is an interprime number because it is at equal distance from previous prime (21622073057419) and next prime (21622073057471).

It is not a de Polignac number, because 21622073057445 - 2⁶ = 21622073057381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21622073057394 and 21622073057403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57256356 + ... + 57632754.

It is an arithmetic number, because the mean of its divisors is an integer number (623670710400).

Almost surely, 2^{21622073057445} is an apocalyptic number.

It is an amenable number.

21622073057445 is a deficient number, since it is larger than the sum of its proper divisors (18292852408155).

21622073057445 is a wasteful number, since it uses less digits than its factorization.

21622073057445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381634.

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 21622073057445 in words is "twenty-one trillion, six hundred twenty-two billion, seventy-three million, fifty-seven thousand, four hundred forty-five".