220766617601 has 8 divisors (see below), whose sum is σ = 222174876384. Its totient is φ = 219359016000.

The previous prime is 220766617541. The next prime is 220766617607. The reversal of 220766617601 is 106716667022.

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

It is a cyclic number.

It is not a de Polignac number, because 220766617601 - 2¹⁸ = 220766355457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220766617607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518726 + ... + 842976.

It is an arithmetic number, because the mean of its divisors is an integer number (27771859548).

Almost surely, 2^220766617601 is an apocalyptic number.

It is an amenable number.

220766617601 is a deficient number, since it is larger than the sum of its proper divisors (1408258783).

220766617601 is a wasteful number, since it uses less digits than its factorization.

220766617601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328591.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 220766617601 in words is "two hundred twenty billion, seven hundred sixty-six million, six hundred seventeen thousand, six hundred one".