2660172373 has 8 divisors (see below), whose sum is σ = 2725815960. Its totient is φ = 2594565120.

The previous prime is 2660172331. The next prime is 2660172377. The reversal of 2660172373 is 3732710662.

It can be written as a sum of positive squares in 4 ways, for example, as 428365809 + 2231806564 = 20697^2 + 47242^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2660172373 - 2⁹ = 2660171861 is a prime.

It is a super-2 number, since 2×2660172373² = 14153034108144902258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660172377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194661 + ... + 207877.

It is an arithmetic number, because the mean of its divisors is an integer number (340726995).

Almost surely, 2^2660172373 is an apocalyptic number.

It is an amenable number.

2660172373 is a deficient number, since it is larger than the sum of its proper divisors (65643587).

2660172373 is a wasteful number, since it uses less digits than its factorization.

2660172373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18167.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 2660172373 is about 51576.8588903977. The cubic root of 2660172373 is about 1385.5959106827.

The spelling of 2660172373 in words is "two billion, six hundred sixty million, one hundred seventy-two thousand, three hundred seventy-three".