220736704018 has 8 divisors (see below), whose sum is σ = 335640741948. Its totient is φ = 108856456704.

The previous prime is 220736703989. The next prime is 220736704033. The reversal of 220736704018 is 810407637022.

It can be written as a sum of positive squares in 2 ways, for example, as 215039020729 + 5697683289 = 463723^2 + 75483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755947471 + ... + 755947762.

Almost surely, 2^220736704018 is an apocalyptic number.

220736704018 is a deficient number, since it is larger than the sum of its proper divisors (114904037930).

220736704018 is a wasteful number, since it uses less digits than its factorization.

220736704018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511895308.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 220736704018 in words is "two hundred twenty billion, seven hundred thirty-six million, seven hundred four thousand, eighteen".