15990310650 has 24 divisors (see below), whose sum is σ = 39655970784. Its totient is φ = 4264082800.

The previous prime is 15990310639. The next prime is 15990310673. The reversal of 15990310650 is 5601309951.

It is a junction number, because it is equal to n+sod(n) for n = 15990310599 and 15990310608.

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, 53300886 + ... + 53301185.

It is an arithmetic number, because the mean of its divisors is an integer number (1652332116).

Almost surely, 2^15990310650 is an apocalyptic number.

15990310650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15990310650 is an abundant number, since it is smaller than the sum of its proper divisors (23665660134).

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

15990310650 is a wasteful number, since it uses less digits than its factorization.

15990310650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106602086 (or 106602081 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 39.

The spelling of 15990310650 in words is "fifteen billion, nine hundred ninety million, three hundred ten thousand, six hundred fifty".