16297000042 has 4 divisors (see below), whose sum is σ = 24445500066. Its totient is φ = 8148500020.

The previous prime is 16297000039. The next prime is 16297000061. The reversal of 16297000042 is 24000079261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24000079261 = 23 ⋅1043481707.

It can be written as a sum of positive squares in only one way, i.e., 10094019961 + 6202980081 = 100469^2 + 78759^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16296999968 and 16297000013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4074250009 + ... + 4074250012.

Almost surely, 2^16297000042 is an apocalyptic number.

16297000042 is a deficient number, since it is larger than the sum of its proper divisors (8148500024).

16297000042 is an equidigital number, since it uses as much as digits as its factorization.

16297000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8148500023.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 16297000042 in words is "sixteen billion, two hundred ninety-seven million, forty-two", and thus it is an aban number.