220730954738 has 18 divisors (see below), whose sum is σ = 385161108111. Its totient is φ = 94596987324.

The previous prime is 220730954671. The next prime is 220730954767. The reversal of 220730954738 is 837459037022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 110365477369 + 110365477369 = 332213^2 + 332213^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332213.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4627253 + ... + 4674711.

Almost surely, 2^220730954738 is an apocalyptic number.

220730954738 is a deficient number, since it is larger than the sum of its proper divisors (164430153373).

220730954738 is an frugal number, since it uses more digits than its factorization.

220730954738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94934 (or 47468 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

Multiplying 220730954738 by its sum of digits (50), we get a square (11036547736900 = 3322130²).

The spelling of 220730954738 in words is "two hundred twenty billion, seven hundred thirty million, nine hundred fifty-four thousand, seven hundred thirty-eight".