164633134540465 has 32 divisors (see below), whose sum is σ = 202561236259200. Its totient is φ = 128378021614080.

The previous prime is 164633134540421. The next prime is 164633134540477. The reversal of 164633134540465 is 564045431336461.

It is not a de Polignac number, because 164633134540465 - 2²⁷ = 164633000322737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2784557394 + ... + 2784616516.

It is an arithmetic number, because the mean of its divisors is an integer number (6330038633100).

Almost surely, 2^{164633134540465} is an apocalyptic number.

It is an amenable number.

164633134540465 is a deficient number, since it is larger than the sum of its proper divisors (37928101718735).

164633134540465 is a wasteful number, since it uses less digits than its factorization.

164633134540465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71217.

The product of its (nonzero) digits is 37324800, while the sum is 55.

The spelling of 164633134540465 in words is "one hundred sixty-four trillion, six hundred thirty-three billion, one hundred thirty-four million, five hundred forty thousand, four hundred sixty-five".