352645663491 has 36 divisors (see below), whose sum is σ = 560808231984. Its totient is φ = 213375587040.

The previous prime is 352645663459. The next prime is 352645663493. The reversal of 352645663491 is 194366546253.

352645663491 is a `hidden beast` number, since 3 + 52 + 6 + 45 + 6 + 63 + 491 = 666.

It is not a de Polignac number, because 352645663491 - 2⁵ = 352645663459 is a prime.

It is a super-2 number, since 2×352645663491² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (352645663493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 403426 + ... + 931688.

It is an arithmetic number, because the mean of its divisors is an integer number (15578006444).

Almost surely, 2^352645663491 is an apocalyptic number.

352645663491 is a deficient number, since it is larger than the sum of its proper divisors (208162568493).

352645663491 is a wasteful number, since it uses less digits than its factorization.

352645663491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528904 (or 528890 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 54.

The spelling of 352645663491 in words is "three hundred fifty-two billion, six hundred forty-five million, six hundred sixty-three thousand, four hundred ninety-one".