16156334042 has 4 divisors (see below), whose sum is σ = 24234501066. Its totient is φ = 8078167020.

The previous prime is 16156334039. The next prime is 16156334053. The reversal of 16156334042 is 24043365161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24043365161 = 43 ⋅559148027.

It can be written as a sum of positive squares in only one way, i.e., 15254473081 + 901860961 = 123509^2 + 30031^2 .

It is a super-2 number, since 2×16156334042² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16156333993 and 16156334011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4039083509 + ... + 4039083512.

Almost surely, 2^16156334042 is an apocalyptic number.

16156334042 is a deficient number, since it is larger than the sum of its proper divisors (8078167024).

16156334042 is an equidigital number, since it uses as much as digits as its factorization.

16156334042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8078167023.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 16156334042 in words is "sixteen billion, one hundred fifty-six million, three hundred thirty-four thousand, forty-two".