7161366731 has 16 divisors (see below), whose sum is σ = 7386531264. Its totient is φ = 6939838464.

The previous prime is 7161366713. The next prime is 7161366743. The reversal of 7161366731 is 1376631617.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7161366731 is a prime.

It is a super-2 number, since 2×7161366731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7161366701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3325151 + ... + 3327303.

It is an arithmetic number, because the mean of its divisors is an integer number (461658204).

Almost surely, 2^7161366731 is an apocalyptic number.

7161366731 is a deficient number, since it is larger than the sum of its proper divisors (225164533).

7161366731 is a wasteful number, since it uses less digits than its factorization.

7161366731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950.

The product of its digits is 95256, while the sum is 41.

The square root of 7161366731 is about 84624.8588241068. The cubic root of 7161366731 is about 1927.5188687807.

The spelling of 7161366731 in words is "seven billion, one hundred sixty-one million, three hundred sixty-six thousand, seven hundred thirty-one".