350564661 has 12 divisors (see below), whose sum is σ = 506834380. Its totient is φ = 233496000.

The previous prime is 350564659. The next prime is 350564699. The reversal of 350564661 is 166465053.

350564661 is a `hidden beast` number, since 3 + 5 + 0 + 5 + 646 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 103917636 + 246647025 = 10194^2 + 15705^2 .

It is not a de Polignac number, because 350564661 - 2¹ = 350564659 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350564651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7090 + ... + 27411.

Almost surely, 2^350564661 is an apocalyptic number.

It is an amenable number.

350564661 is a deficient number, since it is larger than the sum of its proper divisors (156269719).

350564661 is a wasteful number, since it uses less digits than its factorization.

350564661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35636 (or 35633 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 350564661 is about 18723.3720520637. The cubic root of 350564661 is about 705.1086538435.

The spelling of 350564661 in words is "three hundred fifty million, five hundred sixty-four thousand, six hundred sixty-one".