161747853703 has 2 divisors, whose sum is σ = 161747853704. Its totient is φ = 161747853702.

The previous prime is 161747853691. The next prime is 161747853719. The reversal of 161747853703 is 307358747161.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161747853703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161747853403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80873926851 + 80873926852.

It is an arithmetic number, because the mean of its divisors is an integer number (80873926852).

Almost surely, 2^161747853703 is an apocalyptic number.

161747853703 is a deficient number, since it is larger than the sum of its proper divisors (1).

161747853703 is an equidigital number, since it uses as much as digits as its factorization.

161747853703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 161747853703 in words is "one hundred sixty-one billion, seven hundred forty-seven million, eight hundred fifty-three thousand, seven hundred three".