350668661 has 4 divisors (see below), whose sum is σ = 400764192. Its totient is φ = 300573132.

The previous prime is 350668657. The next prime is 350668663. The reversal of 350668661 is 166866053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 350668661 - 2² = 350668657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350668663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25047755 + ... + 25047768.

It is an arithmetic number, because the mean of its divisors is an integer number (100191048).

Almost surely, 2^350668661 is an apocalyptic number.

It is an amenable number.

350668661 is a deficient number, since it is larger than the sum of its proper divisors (50095531).

350668661 is an equidigital number, since it uses as much as digits as its factorization.

350668661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50095530.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 350668661 is about 18726.1491236186. The cubic root of 350668661 is about 705.1783737913.

The spelling of 350668661 in words is "three hundred fifty million, six hundred sixty-eight thousand, six hundred sixty-one".