220605879615 has 64 divisors (see below), whose sum is σ = 393333967872. Its totient is φ = 104683443200.

The previous prime is 220605879551. The next prime is 220605879629. The reversal of 220605879615 is 516978506022.

It is not a de Polignac number, because 220605879615 - 2⁶ = 220605879551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1536229 + ... + 1673681.

It is an arithmetic number, because the mean of its divisors is an integer number (6145843248).

Almost surely, 2^220605879615 is an apocalyptic number.

220605879615 is a deficient number, since it is larger than the sum of its proper divisors (172728088257).

220605879615 is a wasteful number, since it uses less digits than its factorization.

220605879615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137680.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 220605879615 in words is "two hundred twenty billion, six hundred five million, eight hundred seventy-nine thousand, six hundred fifteen".