6745373161 has 4 divisors (see below), whose sum is σ = 6751804500. Its totient is φ = 6738941824.

The previous prime is 6745373153. The next prime is 6745373183. The reversal of 6745373161 is 1613735476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2906827225 + 3838545936 = 53915^2 + 61956^2 .

It is a cyclic number.

It is not a de Polignac number, because 6745373161 - 2³ = 6745373153 is a prime.

It is a super-2 number, since 2×6745373161² = 91000118162278263842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6745373561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3214096 + ... + 3216193.

It is an arithmetic number, because the mean of its divisors is an integer number (1687951125).

Almost surely, 2^6745373161 is an apocalyptic number.

It is an amenable number.

6745373161 is a deficient number, since it is larger than the sum of its proper divisors (6431339).

6745373161 is a wasteful number, since it uses less digits than its factorization.

6745373161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6431338.

The product of its digits is 317520, while the sum is 43.

The square root of 6745373161 is about 82130.2207533865. The cubic root of 6745373161 is about 1889.4496648938.

The spelling of 6745373161 in words is "six billion, seven hundred forty-five million, three hundred seventy-three thousand, one hundred sixty-one".