16144635000 has 160 divisors (see below), whose sum is σ = 54316175760. Its totient is φ = 3974016000.

The previous prime is 16144634941. The next prime is 16144635041. The reversal of 16144635000 is 53644161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 153604 + ... + 236396.

Almost surely, 2^16144635000 is an apocalyptic number.

16144635000 is a gapful number since it is divisible by the number (10) 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 16144635000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27158087880).

16144635000 is an abundant number, since it is smaller than the sum of its proper divisors (38171540760).

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

16144635000 is a wasteful number, since it uses less digits than its factorization.

16144635000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82835 (or 82816 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 16144635000 in words is "sixteen billion, one hundred forty-four million, six hundred thirty-five thousand".