16444952180 has 24 divisors (see below), whose sum is σ = 35100539880. Its totient is φ = 6470144640.

The previous prime is 16444952131. The next prime is 16444952213. The reversal of 16444952180 is 8125944461.

It can be written as a sum of positive squares in 4 ways, for example, as 1403401444 + 15041550736 = 37462^2 + 122644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6738515 + ... + 6740954.

It is an arithmetic number, because the mean of its divisors is an integer number (1462522495).

Almost surely, 2^16444952180 is an apocalyptic number.

16444952180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16444952180 is an abundant number, since it is smaller than the sum of its proper divisors (18655587700).

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

16444952180 is a wasteful number, since it uses less digits than its factorization.

16444952180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13479539 (or 13479537 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 16444952180 in words is "sixteen billion, four hundred forty-four million, nine hundred fifty-two thousand, one hundred eighty".