22515665113156 has 6 divisors (see below), whose sum is σ = 39402413948030. Its totient is φ = 11257832556576.

The previous prime is 22515665113027. The next prime is 22515665113171. The reversal of 22515665113156 is 65131156651522.

It can be written as a sum of positive squares in only one way, i.e., 14434528518400 + 8081136594756 = 3799280^2 + 2842734^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2814458139141 + ... + 2814458139148.

Almost surely, 2^{22515665113156} is an apocalyptic number.

It is an amenable number.

22515665113156 is a deficient number, since it is larger than the sum of its proper divisors (16886748834874).

22515665113156 is a wasteful number, since it uses less digits than its factorization.

22515665113156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628916278293 (or 5628916278291 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 49.

The spelling of 22515665113156 in words is "twenty-two trillion, five hundred fifteen billion, six hundred sixty-five million, one hundred thirteen thousand, one hundred fifty-six".