332500221661 has 16 divisors (see below), whose sum is σ = 343720681920. Its totient is φ = 321520268160.

The previous prime is 332500221659. The next prime is 332500221701. The reversal of 332500221661 is 166122005233.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 332500221661 - 2¹ = 332500221659 is a prime.

It is a super-2 number, since 2×332500221661² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332500221961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584275 + ... + 1003183.

It is an arithmetic number, because the mean of its divisors is an integer number (21482542620).

Almost surely, 2^332500221661 is an apocalyptic number.

It is an amenable number.

332500221661 is a deficient number, since it is larger than the sum of its proper divisors (11220460259).

332500221661 is a wasteful number, since it uses less digits than its factorization.

332500221661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419196.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 332500221661 its reverse (166122005233), we get a palindrome (498622226894).

The spelling of 332500221661 in words is "three hundred thirty-two billion, five hundred million, two hundred twenty-one thousand, six hundred sixty-one".