15870885800940 has 240 divisors, whose sum is σ = 50098478862432. Its totient is φ = 4205888354304.

The previous prime is 15870885800899. The next prime is 15870885800947. The reversal of 15870885800940 is 4900858807851.

15870885800940 is a `hidden beast` number, since 1 + 5 + 8 + 7 + 0 + 8 + 8 + 580 + 0 + 9 + 40 = 666.

It is a super-2 number, since 2×15870885800940² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15870885800947) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 167556234 + ... + 167650926.

Almost surely, 2^{15870885800940} is an apocalyptic number.

15870885800940 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 15870885800940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25049239431216).

15870885800940 is an abundant number, since it is smaller than the sum of its proper divisors (34227593061492).

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

15870885800940 is a wasteful number, since it uses less digits than its factorization.

15870885800940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95358 (or 95347 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 63.

The spelling of 15870885800940 in words is "fifteen trillion, eight hundred seventy billion, eight hundred eighty-five million, eight hundred thousand, nine hundred forty".