16157188322 has 18 divisors (see below), whose sum is σ = 26642591787. Its totient is φ = 7343277700.

The previous prime is 16157188303. The next prime is 16157188337. The reversal of 16157188322 is 22388175161.

It can be written as a sum of positive squares in only one way, i.e., 8078594161 + 8078594161 = 89881^2 + 89881^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=89881.

It is a super-2 number, since 2×16157188322² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1973297 + ... + 1981467.

Almost surely, 2^16157188322 is an apocalyptic number.

16157188322 is a deficient number, since it is larger than the sum of its proper divisors (10485403465).

16157188322 is an frugal number, since it uses more digits than its factorization.

16157188322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16366 (or 8184 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The spelling of 16157188322 in words is "sixteen billion, one hundred fifty-seven million, one hundred eighty-eight thousand, three hundred twenty-two".