172495534465 has 16 divisors (see below), whose sum is σ = 219791715408. Its totient is φ = 129511038976.

The previous prime is 172495534447. The next prime is 172495534487. The reversal of 172495534465 is 564435594271.

It can be written as a sum of positive squares in 8 ways, for example, as 4586540176 + 167908994289 = 67724^2 + 409767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172495534465 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2844442 + ... + 2904451.

It is an arithmetic number, because the mean of its divisors is an integer number (13736982213).

Almost surely, 2^172495534465 is an apocalyptic number.

It is an amenable number.

172495534465 is a deficient number, since it is larger than the sum of its proper divisors (47296180943).

172495534465 is a wasteful number, since it uses less digits than its factorization.

172495534465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749268.

The product of its digits is 18144000, while the sum is 55.

The spelling of 172495534465 in words is "one hundred seventy-two billion, four hundred ninety-five million, five hundred thirty-four thousand, four hundred sixty-five".