108040060691 has 2 divisors, whose sum is σ = 108040060692. Its totient is φ = 108040060690.

The previous prime is 108040060649. The next prime is 108040060697. The reversal of 108040060691 is 196060040801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108040060691 is a prime.

It is a super-2 number, since 2×108040060691² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108040060697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54020030345 + 54020030346.

It is an arithmetic number, because the mean of its divisors is an integer number (54020030346).

Almost surely, 2^108040060691 is an apocalyptic number.

108040060691 is a deficient number, since it is larger than the sum of its proper divisors (1).

108040060691 is an equidigital number, since it uses as much as digits as its factorization.

108040060691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 108040060691 in words is "one hundred eight billion, forty million, sixty thousand, six hundred ninety-one".