350220661 has 16 divisors (see below), whose sum is σ = 411070464. Its totient is φ = 292166784.

The previous prime is 350220653. The next prime is 350220683. The reversal of 350220661 is 166022053.

It is not a de Polignac number, because 350220661 - 2³ = 350220653 is a prime.

It is a super-2 number, since 2×350220661² = 245309022782553842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350220601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43401 + ... + 50833.

It is an arithmetic number, because the mean of its divisors is an integer number (25691904).

Almost surely, 2^350220661 is an apocalyptic number.

It is an amenable number.

350220661 is a deficient number, since it is larger than the sum of its proper divisors (60849803).

350220661 is a wasteful number, since it uses less digits than its factorization.

350220661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 350220661 is about 18714.1834179320. The cubic root of 350220661 is about 704.8779434254.

The spelling of 350220661 in words is "three hundred fifty million, two hundred twenty thousand, six hundred sixty-one".