220151955458 has 6 divisors (see below), whose sum is σ = 330228928521. Its totient is φ = 110075645952.

The previous prime is 220151955433. The next prime is 220151955461. The reversal of 220151955458 is 854559151022.

It can be written as a sum of positive squares in 2 ways, for example, as 110840387329 + 109311568129 = 332927^2 + 330623^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=331777.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 497666 + ... + 829442.

Almost surely, 2^220151955458 is an apocalyptic number.

220151955458 is a deficient number, since it is larger than the sum of its proper divisors (110076973063).

220151955458 is an frugal number, since it uses more digits than its factorization.

220151955458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663556 (or 331779 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 47.

The spelling of 220151955458 in words is "two hundred twenty billion, one hundred fifty-one million, nine hundred fifty-five thousand, four hundred fifty-eight".