15220313885 has 16 divisors (see below), whose sum is σ = 20882987136. Its totient is φ = 10432079808.

The previous prime is 15220313881. The next prime is 15220313897. The reversal of 15220313885 is 58831302251.

It is a cyclic number.

It is not a de Polignac number, because 15220313885 - 2² = 15220313881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15220313881) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18434 + ... + 175443.

It is an arithmetic number, because the mean of its divisors is an integer number (1305186696).

Almost surely, 2^15220313885 is an apocalyptic number.

It is an amenable number.

15220313885 is a deficient number, since it is larger than the sum of its proper divisors (5662673251).

15220313885 is a wasteful number, since it uses less digits than its factorization.

15220313885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196132.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 15220313885 in words is "fifteen billion, two hundred twenty million, three hundred thirteen thousand, eight hundred eighty-five".