22136157978536 has 32 divisors (see below), whose sum is σ = 47497786279680. Its totient is φ = 9474292440000.

The previous prime is 22136157978533. The next prime is 22136157978551. The reversal of 22136157978536 is 63587975163122.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22136157978533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263132735 + ... + 263216846.

It is an arithmetic number, because the mean of its divisors is an integer number (1484305821240).

Almost surely, 2^{22136157978536} is an apocalyptic number.

It is an amenable number.

22136157978536 is an abundant number, since it is smaller than the sum of its proper divisors (25361628301144).

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

22136157978536 is a wasteful number, since it uses less digits than its factorization.

22136157978536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526350345 (or 526350341 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 65.

The spelling of 22136157978536 in words is "twenty-two trillion, one hundred thirty-six billion, one hundred fifty-seven million, nine hundred seventy-eight thousand, five hundred thirty-six".