8164864946531 has 32 divisors (see below), whose sum is σ = 8413983864000. Its totient is φ = 7921009254400.

The previous prime is 8164864946527. The next prime is 8164864946633. The reversal of 8164864946531 is 1356494684618.

It is a cyclic number.

It is not a de Polignac number, because 8164864946531 - 2² = 8164864946527 is a prime.

It is a super-2 number, since 2×8164864946531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8164864946431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 500873081 + ... + 500889381.

It is an arithmetic number, because the mean of its divisors is an integer number (262936995750).

Almost surely, 2^{8164864946531} is an apocalyptic number.

8164864946531 is a deficient number, since it is larger than the sum of its proper divisors (249118917469).

8164864946531 is a wasteful number, since it uses less digits than its factorization.

8164864946531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16999.

The product of its digits is 119439360, while the sum is 65.

The spelling of 8164864946531 in words is "eight trillion, one hundred sixty-four billion, eight hundred sixty-four million, nine hundred forty-six thousand, five hundred thirty-one".