161494726747 has 2 divisors, whose sum is σ = 161494726748. Its totient is φ = 161494726746.

The previous prime is 161494726733. The next prime is 161494726751. The reversal of 161494726747 is 747627494161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161494726747 - 2²⁷ = 161360509019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161494726691 and 161494726700.

It is not a weakly prime, because it can be changed into another prime (161494726727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80747363373 + 80747363374.

It is an arithmetic number, because the mean of its divisors is an integer number (80747363374).

Almost surely, 2^161494726747 is an apocalyptic number.

161494726747 is a deficient number, since it is larger than the sum of its proper divisors (1).

161494726747 is an equidigital number, since it uses as much as digits as its factorization.

161494726747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14224896, while the sum is 58.

The spelling of 161494726747 in words is "one hundred sixty-one billion, four hundred ninety-four million, seven hundred twenty-six thousand, seven hundred forty-seven".