161601600151 has 2 divisors, whose sum is σ = 161601600152. Its totient is φ = 161601600150.

The previous prime is 161601600137. The next prime is 161601600179. The reversal of 161601600151 is 151006106161.

It is an a-pointer prime, because the next prime (161601600179) can be obtained adding 161601600151 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161601600151 - 2²⁵ = 161568045719 is a prime.

It is a super-2 number, since 2×161601600151² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161601603151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80800800075 + 80800800076.

It is an arithmetic number, because the mean of its divisors is an integer number (80800800076).

Almost surely, 2^161601600151 is an apocalyptic number.

161601600151 is a deficient number, since it is larger than the sum of its proper divisors (1).

161601600151 is an equidigital number, since it uses as much as digits as its factorization.

161601600151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 161601600151 in words is "one hundred sixty-one billion, six hundred one million, six hundred thousand, one hundred fifty-one".