16531010042 has 16 divisors (see below), whose sum is σ = 25378103520. Its totient is φ = 8071716912.

The previous prime is 16531010039. The next prime is 16531010051. The reversal of 16531010042 is 24001013561.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515309 + ... + 546447.

It is an arithmetic number, because the mean of its divisors is an integer number (1586131470).

Almost surely, 2^16531010042 is an apocalyptic number.

16531010042 is a deficient number, since it is larger than the sum of its proper divisors (8847093478).

16531010042 is a wasteful number, since it uses less digits than its factorization.

16531010042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37357.

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 16531010042 in words is "sixteen billion, five hundred thirty-one million, ten thousand, forty-two".