19850150656 has 144 divisors (see below), whose sum is σ = 47035775808. Its totient is φ = 8183808000.

The previous prime is 19850150653. The next prime is 19850150669. The reversal of 19850150656 is 65605105891.

It is not an unprimeable number, because it can be changed into a prime (19850150651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5361606 + ... + 5365306.

It is an arithmetic number, because the mean of its divisors is an integer number (326637332).

Almost surely, 2^19850150656 is an apocalyptic number.

19850150656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19850150656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23517887904).

19850150656 is an abundant number, since it is smaller than the sum of its proper divisors (27185625152).

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

19850150656 is an equidigital number, since it uses as much as digits as its factorization.

19850150656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838 (or 3824 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 19850150656 in words is "nineteen billion, eight hundred fifty million, one hundred fifty thousand, six hundred fifty-six".