15840252822220 has 48 divisors (see below), whose sum is σ = 33322655318400. Its totient is φ = 6325032220416.

The previous prime is 15840252822181. The next prime is 15840252822253. The reversal of 15840252822220 is 2222825204851.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112709514 + ... + 112849966.

It is an arithmetic number, because the mean of its divisors is an integer number (694221985800).

Almost surely, 2^{15840252822220} is an apocalyptic number.

15840252822220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15840252822220 is an abundant number, since it is smaller than the sum of its proper divisors (17482402496180).

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

15840252822220 is a wasteful number, since it uses less digits than its factorization.

15840252822220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150274 (or 150272 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 43.

The spelling of 15840252822220 in words is "fifteen trillion, eight hundred forty billion, two hundred fifty-two million, eight hundred twenty-two thousand, two hundred twenty".