161650703 has 2 divisors, whose sum is σ = 161650704. Its totient is φ = 161650702.

The previous prime is 161650691. The next prime is 161650711. The reversal of 161650703 is 307056161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161650703 - 2⁶ = 161650639 is a prime.

It is a super-2 number, since 2×161650703² = 52261899560788418, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161650733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80825351 + 80825352.

It is an arithmetic number, because the mean of its divisors is an integer number (80825352).

Almost surely, 2^161650703 is an apocalyptic number.

161650703 is a deficient number, since it is larger than the sum of its proper divisors (1).

161650703 is an equidigital number, since it uses as much as digits as its factorization.

161650703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 161650703 is about 12714.1929747822. The cubic root of 161650703 is about 544.7440966768.

The spelling of 161650703 in words is "one hundred sixty-one million, six hundred fifty thousand, seven hundred three".