164652235251 has 192 divisors, whose sum is σ = 288618494976. Its totient is φ = 82790400000.

The previous prime is 164652235249. The next prime is 164652235271. The reversal of 164652235251 is 152532256461.

It is not a de Polignac number, because 164652235251 - 2¹ = 164652235249 is a prime.

It is a super-2 number, since 2×164652235251² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164652235271) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 655984876 + ... + 655985126.

It is an arithmetic number, because the mean of its divisors is an integer number (1503221328).

Almost surely, 2^164652235251 is an apocalyptic number.

164652235251 is a deficient number, since it is larger than the sum of its proper divisors (123966259725).

164652235251 is a wasteful number, since it uses less digits than its factorization.

164652235251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 515 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 164652235251 in words is "one hundred sixty-four billion, six hundred fifty-two million, two hundred thirty-five thousand, two hundred fifty-one".