161152308631 has 2 divisors, whose sum is σ = 161152308632. Its totient is φ = 161152308630.

The previous prime is 161152308617. The next prime is 161152308649. The reversal of 161152308631 is 136803251161.

161152308631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161152308631 - 2³³ = 152562374039 is a prime.

It is a super-2 number, since 2×161152308631² (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 (161152302631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80576154315 + 80576154316.

It is an arithmetic number, because the mean of its divisors is an integer number (80576154316).

Almost surely, 2^161152308631 is an apocalyptic number.

161152308631 is a deficient number, since it is larger than the sum of its proper divisors (1).

161152308631 is an equidigital number, since it uses as much as digits as its factorization.

161152308631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 161152308631 its reverse (136803251161), we get a palindrome (297955559792).

The spelling of 161152308631 in words is "one hundred sixty-one billion, one hundred fifty-two million, three hundred eight thousand, six hundred thirty-one".