16251984650 has 24 divisors (see below), whose sum is σ = 32976755424. Its totient is φ = 5909812400.

The previous prime is 16251984643. The next prime is 16251984689. The reversal of 16251984650 is 5648915261.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16251984595 and 16251984604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14773982 + ... + 14775081.

It is an arithmetic number, because the mean of its divisors is an integer number (1374031476).

Almost surely, 2^16251984650 is an apocalyptic number.

16251984650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16251984650 is an abundant number, since it is smaller than the sum of its proper divisors (16724770774).

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

16251984650 is a wasteful number, since it uses less digits than its factorization.

16251984650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29549086 (or 29549081 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The spelling of 16251984650 in words is "sixteen billion, two hundred fifty-one million, nine hundred eighty-four thousand, six hundred fifty".