15919249220 has 24 divisors (see below), whose sum is σ = 38206198464. Its totient is φ = 5458028256.

The previous prime is 15919249219. The next prime is 15919249289. The reversal of 15919249220 is 2294291951.

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 7 ways as a sum of consecutive naturals, for example, 56854322 + ... + 56854601.

It is an arithmetic number, because the mean of its divisors is an integer number (1591924936).

Almost surely, 2^15919249220 is an apocalyptic number.

15919249220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15919249220 is an abundant number, since it is smaller than the sum of its proper divisors (22286949244).

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

15919249220 is a wasteful number, since it uses less digits than its factorization.

15919249220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113708939 (or 113708937 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 15919249220 in words is "fifteen billion, nine hundred nineteen million, two hundred forty-nine thousand, two hundred twenty".