22038955578 has 16 divisors (see below), whose sum is σ = 48975456960. Its totient is φ = 7346318508.

The previous prime is 22038955537. The next prime is 22038955583. The reversal of 22038955578 is 87555983022.

22038955578 is a `hidden beast` number, since 2 + 2 + 0 + 3 + 89 + 5 + 557 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 408128807 = 22038955578 / (2 + 2 + 0 + 3 + 8 + 9 + 5 + 5 + 5 + 7 + 8).

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, 204064350 + ... + 204064457.

It is an arithmetic number, because the mean of its divisors is an integer number (3060966060).

Almost surely, 2^22038955578 is an apocalyptic number.

22038955578 is an abundant number, since it is smaller than the sum of its proper divisors (26936501382).

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

22038955578 is a wasteful number, since it uses less digits than its factorization.

22038955578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408128818 (or 408128812 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 22038955578 in words is "twenty-two billion, thirty-eight million, nine hundred fifty-five thousand, five hundred seventy-eight".