22633520394 has 16 divisors (see below), whose sum is σ = 45517137120. Its totient is φ = 7502824080.

The previous prime is 22633520387. The next prime is 22633520443. The reversal of 22633520394 is 49302533622.

It is a super-2 number, since 2×22633520394² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10419504 + ... + 10421675.

It is an arithmetic number, because the mean of its divisors is an integer number (2844821070).

Almost surely, 2^22633520394 is an apocalyptic number.

22633520394 is an abundant number, since it is smaller than the sum of its proper divisors (22883616726).

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

22633520394 is a wasteful number, since it uses less digits than its factorization.

22633520394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20841365.

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 22633520394 in words is "twenty-two billion, six hundred thirty-three million, five hundred twenty thousand, three hundred ninety-four".