306213432661332 has 48 divisors (see below), whose sum is σ = 907299059739520. Its totient is φ = 87489552188736.

The previous prime is 306213432661313. The next prime is 306213432661337. The reversal of 306213432661332 is 233166234312603.

306213432661332 is a `hidden beast` number, since 3 + 0 + 6 + 2 + 1 + 3 + 4 + 3 + 26 + 613 + 3 + 2 = 666.

It is a super-2 number, since 2×306213432661332² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306213432661337) 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, 202522110793 + ... + 202522112304.

Almost surely, 2^{306213432661332} is an apocalyptic number.

It is an amenable number.

306213432661332 is an abundant number, since it is smaller than the sum of its proper divisors (601085627078188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

306213432661332 is a wasteful number, since it uses less digits than its factorization.

306213432661332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405044223117 (or 405044223109 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 45.

Adding to 306213432661332 its reverse (233166234312603), we get a palindrome (539379666973935).

The spelling of 306213432661332 in words is "three hundred six trillion, two hundred thirteen billion, four hundred thirty-two million, six hundred sixty-one thousand, three hundred thirty-two".