16142509664 has 24 divisors (see below), whose sum is σ = 33650012088. Its totient is φ = 7596474880.

The previous prime is 16142509639. The next prime is 16142509693. The reversal of 16142509664 is 46690524161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14836322 + ... + 14837409.

It is an arithmetic number, because the mean of its divisors is an integer number (1402083837).

Almost surely, 2^16142509664 is an apocalyptic number.

It is an amenable number.

16142509664 is an abundant number, since it is smaller than the sum of its proper divisors (17507502424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16142509664 is a wasteful number, since it uses less digits than its factorization.

16142509664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29673758 (or 29673750 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 16142509664 in words is "sixteen billion, one hundred forty-two million, five hundred nine thousand, six hundred sixty-four".