16311039642 has 24 divisors (see below), whose sum is σ = 35690496660. Its totient is φ = 5383180800.

The previous prime is 16311039637. The next prime is 16311039653. The reversal of 16311039642 is 24693011361.

16311039642 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 1 + 0 + 3 + 9 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14779021761 + 1532017881 = 121569^2 + 39141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16311039597 and 16311039606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4484167 + ... + 4487802.

Almost surely, 2^16311039642 is an apocalyptic number.

16311039642 is an abundant number, since it is smaller than the sum of its proper divisors (19379457018).

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

16311039642 is a wasteful number, since it uses less digits than its factorization.

16311039642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972078 (or 8972075 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 16311039642 in words is "sixteen billion, three hundred eleven million, thirty-nine thousand, six hundred forty-two".