19364801156 has 12 divisors (see below), whose sum is σ = 35056967820. Its totient is φ = 9348524640.

The previous prime is 19364801149. The next prime is 19364801189. The reversal of 19364801156 is 65110846391.

It can be written as a sum of positive squares in 2 ways, for example, as 15109326400 + 4255474756 = 122920^2 + 65234^2 .

It is a super-2 number, since 2×19364801156² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83468855 + ... + 83469086.

It is an arithmetic number, because the mean of its divisors is an integer number (2921413985).

Almost surely, 2^19364801156 is an apocalyptic number.

It is an amenable number.

19364801156 is a deficient number, since it is larger than the sum of its proper divisors (15692166664).

19364801156 is a wasteful number, since it uses less digits than its factorization.

19364801156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166937974 (or 166937972 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 19364801156 in words is "nineteen billion, three hundred sixty-four million, eight hundred one thousand, one hundred fifty-six".