156746445240 has 256 divisors, whose sum is σ = 587793024000. Its totient is φ = 32486215680.

The previous prime is 156746445217. The next prime is 156746445259. The reversal of 156746445240 is 42544647651.

It is a self number, because there is not a number n which added to its sum of digits gives 156746445240.

It is a congruent number.

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, 3572556 + ... + 3616164.

It is an arithmetic number, because the mean of its divisors is an integer number (2296066500).

Almost surely, 2^156746445240 is an apocalyptic number.

156746445240 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 156746445240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293896512000).

156746445240 is an abundant number, since it is smaller than the sum of its proper divisors (431046578760).

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

156746445240 is a wasteful number, since it uses less digits than its factorization.

156746445240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44030 (or 44026 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 156746445240 in words is "one hundred fifty-six billion, seven hundred forty-six million, four hundred forty-five thousand, two hundred forty".