220879243165 has 16 divisors (see below), whose sum is σ = 316090545408. Its totient is φ = 144874832256.

The previous prime is 220879243159. The next prime is 220879243219. The reversal of 220879243165 is 561342978022.

It is a happy number.

It is not a de Polignac number, because 220879243165 - 2⁹ = 220879242653 is a prime.

It is a super-2 number, since 2×220879243165² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137191272 + ... + 137192881.

It is an arithmetic number, because the mean of its divisors is an integer number (19755659088).

It is a 1-persistent number, because it is pandigital, but 2⋅220879243165 = 441758486330 is not.

Almost surely, 2^220879243165 is an apocalyptic number.

It is an amenable number.

220879243165 is a deficient number, since it is larger than the sum of its proper divisors (95211302243).

220879243165 is a wasteful number, since it uses less digits than its factorization.

220879243165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274384188.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 220879243165 in words is "two hundred twenty billion, eight hundred seventy-nine million, two hundred forty-three thousand, one hundred sixty-five".