16231142240 has 96 divisors (see below), whose sum is σ = 40740900480. Its totient is φ = 6099093504.

The previous prime is 16231142233. The next prime is 16231142339. The reversal of 16231142240 is 4224113261.

It is a super-2 number, since 2×16231142240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124409 + ... + 218951.

It is an arithmetic number, because the mean of its divisors is an integer number (424384380).

Almost surely, 2^16231142240 is an apocalyptic number.

16231142240 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 16231142240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20370450240).

16231142240 is an abundant number, since it is smaller than the sum of its proper divisors (24509758240).

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

16231142240 is a wasteful number, since it uses less digits than its factorization.

16231142240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94624 (or 94616 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 16231142240 in words is "sixteen billion, two hundred thirty-one million, one hundred forty-two thousand, two hundred forty".