16039494990 has 32 divisors (see below), whose sum is σ = 42771987360. Its totient is φ = 4277198592.

The previous prime is 16039494979. The next prime is 16039495007. The reversal of 16039494990 is 9949493061.

16039494990 is a `hidden beast` number, since 1 + 60 + 3 + 9 + 494 + 9 + 90 = 666.

16039494990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29702499 + ... + 29703038.

It is an arithmetic number, because the mean of its divisors is an integer number (1336624605).

Almost surely, 2^16039494990 is an apocalyptic number.

16039494990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16039494990 is an abundant number, since it is smaller than the sum of its proper divisors (26732492370).

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

16039494990 is a wasteful number, since it uses less digits than its factorization.

16039494990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59405553 (or 59405547 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The spelling of 16039494990 in words is "sixteen billion, thirty-nine million, four hundred ninety-four thousand, nine hundred ninety".