161379737303 has 2 divisors, whose sum is σ = 161379737304. Its totient is φ = 161379737302.

The previous prime is 161379737263. The next prime is 161379737329. The reversal of 161379737303 is 303737973161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161379737303 - 2²⁰ = 161378688727 is a prime.

It is a super-2 number, since 2×161379737303² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161379737333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80689868651 + 80689868652.

It is an arithmetic number, because the mean of its divisors is an integer number (80689868652).

Almost surely, 2^161379737303 is an apocalyptic number.

161379737303 is a deficient number, since it is larger than the sum of its proper divisors (1).

161379737303 is an equidigital number, since it uses as much as digits as its factorization.

161379737303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500282, while the sum is 50.

The spelling of 161379737303 in words is "one hundred sixty-one billion, three hundred seventy-nine million, seven hundred thirty-seven thousand, three hundred three".