22645316541 has 4 divisors (see below), whose sum is σ = 30193755392. Its totient is φ = 15096877692.

The previous prime is 22645316539. The next prime is 22645316543. The reversal of 22645316541 is 14561354622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22645316539) and next prime (22645316543).

It is not a de Polignac number, because 22645316541 - 2¹ = 22645316539 is a prime.

It is a super-2 number, since 2×22645316541² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22645316541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22645316543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3774219421 + ... + 3774219426.

It is an arithmetic number, because the mean of its divisors is an integer number (7548438848).

Almost surely, 2^22645316541 is an apocalyptic number.

It is an amenable number.

22645316541 is a deficient number, since it is larger than the sum of its proper divisors (7548438851).

22645316541 is an equidigital number, since it uses as much as digits as its factorization.

22645316541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7548438850.

The product of its digits is 172800, while the sum is 39.

The spelling of 22645316541 in words is "twenty-two billion, six hundred forty-five million, three hundred sixteen thousand, five hundred forty-one".