2015990886672 has 320 divisors, whose sum is σ = 7020864921600. Its totient is φ = 540679587840.

The previous prime is 2015990886659. The next prime is 2015990886731. The reversal of 2015990886672 is 2766880995102.

It is a super-4 number, since 4×2015990886672⁴ (a number of 50 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19431897 + ... + 19535367.

It is an arithmetic number, because the mean of its divisors is an integer number (21940202880).

Almost surely, 2^{2015990886672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015990886672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3510432460800).

2015990886672 is an abundant number, since it is smaller than the sum of its proper divisors (5004874034928).

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

2015990886672 is a wasteful number, since it uses less digits than its factorization.

2015990886672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103891 (or 103879 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 2015990886672 in words is "two trillion, fifteen billion, nine hundred ninety million, eight hundred eighty-six thousand, six hundred seventy-two".