73165641 has 8 divisors (see below), whose sum is σ = 97635360. Its totient is φ = 48736512.

The previous prime is 73165633. The next prime is 73165649. The reversal of 73165641 is 14656137.

It is an interprime number because it is at equal distance from previous prime (73165633) and next prime (73165649).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73165641 - 2³ = 73165633 is a prime.

It is a super-2 number, since 2×73165641² = 10706422045881762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73165649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5656 + ... + 13353.

It is an arithmetic number, because the mean of its divisors is an integer number (12204420).

Almost surely, 2^73165641 is an apocalyptic number.

It is an amenable number.

73165641 is a deficient number, since it is larger than the sum of its proper divisors (24469719).

73165641 is a wasteful number, since it uses less digits than its factorization.

73165641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20295.

The product of its digits is 15120, while the sum is 33.

The square root of 73165641 is about 8553.6916591610. The cubic root of 73165641 is about 418.2497858406.

The spelling of 73165641 in words is "seventy-three million, one hundred sixty-five thousand, six hundred forty-one".