15968376220 has 12 divisors (see below), whose sum is σ = 33533590104. Its totient is φ = 6387350480.

The previous prime is 15968376217. The next prime is 15968376239. The reversal of 15968376220 is 2267386951.

It is a super-2 number, since 2×15968376220² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 399209386 + ... + 399209425.

It is an arithmetic number, because the mean of its divisors is an integer number (2794465842).

Almost surely, 2^15968376220 is an apocalyptic number.

15968376220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15968376220 is an abundant number, since it is smaller than the sum of its proper divisors (17565213884).

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

15968376220 is a wasteful number, since it uses less digits than its factorization.

15968376220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798418820 (or 798418818 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 15968376220 in words is "fifteen billion, nine hundred sixty-eight million, three hundred seventy-six thousand, two hundred twenty".