15985532038470 has 128 divisors (see below), whose sum is σ = 39550578600960. Its totient is φ = 4133123904000.

The previous prime is 15985532038363. The next prime is 15985532038477. The reversal of 15985532038470 is 7483023558951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15985532038477) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1342300876 + ... + 1342312784.

It is an arithmetic number, because the mean of its divisors is an integer number (308988895320).

Almost surely, 2^{15985532038470} is an apocalyptic number.

15985532038470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15985532038470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19775289300480).

15985532038470 is an abundant number, since it is smaller than the sum of its proper divisors (23565046562490).

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

15985532038470 is a wasteful number, since it uses less digits than its factorization.

15985532038470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22382.

The product of its (nonzero) digits is 36288000, while the sum is 60.

The spelling of 15985532038470 in words is "fifteen trillion, nine hundred eighty-five billion, five hundred thirty-two million, thirty-eight thousand, four hundred seventy".