20185442150 has 48 divisors (see below), whose sum is σ = 39772191024. Its totient is φ = 7595642880.

The previous prime is 20185442149. The next prime is 20185442159. The reversal of 20185442150 is 5124458102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20185442159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2412374 + ... + 2420726.

It is an arithmetic number, because the mean of its divisors is an integer number (828587313).

Almost surely, 2^20185442150 is an apocalyptic number.

20185442150 is a deficient number, since it is larger than the sum of its proper divisors (19586748874).

20185442150 is a wasteful number, since it uses less digits than its factorization.

20185442150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11225 (or 11220 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The spelling of 20185442150 in words is "twenty billion, one hundred eighty-five million, four hundred forty-two thousand, one hundred fifty".