332500661 has 4 divisors (see below), whose sum is σ = 332796300. Its totient is φ = 332205024.

The previous prime is 332500621. The next prime is 332500669. The reversal of 332500661 is 166005233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11015761 + 321484900 = 3319^2 + 17930^2 .

It is a cyclic number.

It is not a de Polignac number, because 332500661 - 2¹⁴ = 332484277 is a prime.

It is a super-2 number, since 2×332500661² = 221113379130873842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 332500661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332500669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146126 + ... + 148383.

It is an arithmetic number, because the mean of its divisors is an integer number (83199075).

Almost surely, 2^332500661 is an apocalyptic number.

It is an amenable number.

332500661 is a deficient number, since it is larger than the sum of its proper divisors (295639).

332500661 is a wasteful number, since it uses less digits than its factorization.

332500661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295638.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 332500661 is about 18234.6006537023. The cubic root of 332500661 is about 692.7834501949.

Adding to 332500661 its reverse (166005233), we get a palindrome (498505894).

The spelling of 332500661 in words is "three hundred thirty-two million, five hundred thousand, six hundred sixty-one".