16158408240 has 320 divisors, whose sum is σ = 55688435712. Its totient is φ = 3850752000.

The previous prime is 16158408229. The next prime is 16158408289. The reversal of 16158408240 is 4280485161.

It is a super-2 number, since 2×16158408240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14810095 + ... + 14811185.

Almost surely, 2^16158408240 is an apocalyptic number.

16158408240 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 16158408240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27844217856).

16158408240 is an abundant number, since it is smaller than the sum of its proper divisors (39530027472).

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

16158408240 is a wasteful number, since it uses less digits than its factorization.

16158408240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The spelling of 16158408240 in words is "sixteen billion, one hundred fifty-eight million, four hundred eight thousand, two hundred forty".