220500878929984 has 21 divisors (see below), whose sum is σ = 437556667359007. Its totient is φ = 110250380067904.

The previous prime is 220500878929943. The next prime is 220500878929987. The reversal of 220500878929984 is 489929878005022.

The square root of 220500878929984 is 14849272.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220500878929987) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 117866097 + ... + 119722255.

Almost surely, 2^{220500878929984} is an apocalyptic number.

220500878929984 is the 14849272-nd square number.

It is an amenable number.

220500878929984 is a deficient number, since it is larger than the sum of its proper divisors (217055788429023).

220500878929984 is an frugal number, since it uses more digits than its factorization.

220500878929984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712330 (or 1856161 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 73.

The spelling of 220500878929984 in words is "two hundred twenty trillion, five hundred billion, eight hundred seventy-eight million, nine hundred twenty-nine thousand, nine hundred eighty-four".