161532316151 has 2 divisors, whose sum is σ = 161532316152. Its totient is φ = 161532316150.

The previous prime is 161532316139. The next prime is 161532316159. The reversal of 161532316151 is 151613235161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161532316151 - 2⁶ = 161532316087 is a prime.

It is a super-2 number, since 2×161532316151² (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 (161532316159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80766158075 + 80766158076.

It is an arithmetic number, because the mean of its divisors is an integer number (80766158076).

Almost surely, 2^161532316151 is an apocalyptic number.

161532316151 is a deficient number, since it is larger than the sum of its proper divisors (1).

161532316151 is an equidigital number, since it uses as much as digits as its factorization.

161532316151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 35.

The spelling of 161532316151 in words is "one hundred sixty-one billion, five hundred thirty-two million, three hundred sixteen thousand, one hundred fifty-one".