220666087404 has 120 divisors (see below), whose sum is σ = 680541109248. Its totient is φ = 61013645280.

The previous prime is 220666087391. The next prime is 220666087409. The reversal of 220666087404 is 404780666022.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 220666087404.

It is not an unprimeable number, because it can be changed into a prime (220666087409) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1498974 + ... + 1639589.

Almost surely, 2^220666087404 is an apocalyptic number.

It is an amenable number.

220666087404 is an abundant number, since it is smaller than the sum of its proper divisors (459875021844).

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

220666087404 is a wasteful number, since it uses less digits than its factorization.

220666087404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138617 (or 3138606 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 220666087404 in words is "two hundred twenty billion, six hundred sixty-six million, eighty-seven thousand, four hundred four".