353264661 has 6 divisors (see below), whose sum is σ = 510271190. Its totient is φ = 235509768.

The previous prime is 353264621. The next prime is 353264707. The reversal of 353264661 is 166462353.

353264661 is a `hidden beast` number, since 3 + 5 + 3 + 2 + 646 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 348979761 + 4284900 = 18681^2 + 2070^2 .

It is not a de Polignac number, because 353264661 - 2¹⁴ = 353248277 is a prime.

It is a super-2 number, since 2×353264661² = 249591841422889842, which contains 22 as substring.

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 (353264621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19625806 + ... + 19625823.

Almost surely, 2^353264661 is an apocalyptic number.

It is an amenable number.

353264661 is a deficient number, since it is larger than the sum of its proper divisors (157006529).

353264661 is a wasteful number, since it uses less digits than its factorization.

353264661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39251635 (or 39251632 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 353264661 is about 18795.3361502262. The cubic root of 353264661 is about 706.9142423692.

The spelling of 353264661 in words is "three hundred fifty-three million, two hundred sixty-four thousand, six hundred sixty-one".