16542045388 has 48 divisors (see below), whose sum is σ = 31877201664. Its totient is φ = 7448725440.

The previous prime is 16542045379. The next prime is 16542045391. The reversal of 16542045388 is 88354024561.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2252170 + ... + 2259502.

It is an arithmetic number, because the mean of its divisors is an integer number (664108368).

Almost surely, 2^16542045388 is an apocalyptic number.

It is an amenable number.

16542045388 is a deficient number, since it is larger than the sum of its proper divisors (15335156276).

16542045388 is a wasteful number, since it uses less digits than its factorization.

16542045388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7822 (or 7820 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 16542045388 in words is "sixteen billion, five hundred forty-two million, forty-five thousand, three hundred eighty-eight".