16335500642 has 4 divisors (see below), whose sum is σ = 24503250966. Its totient is φ = 8167750320.

The previous prime is 16335500633. The next prime is 16335500653. The reversal of 16335500642 is 24600553361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12367886521 + 3967614121 = 111211^2 + 62989^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4083875159 + ... + 4083875162.

Almost surely, 2^16335500642 is an apocalyptic number.

16335500642 is a deficient number, since it is larger than the sum of its proper divisors (8167750324).

16335500642 is an equidigital number, since it uses as much as digits as its factorization.

16335500642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8167750323.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 16335500642 in words is "sixteen billion, three hundred thirty-five million, five hundred thousand, six hundred forty-two".