157610161097 has 2 divisors, whose sum is σ = 157610161098. Its totient is φ = 157610161096.

The previous prime is 157610161073. The next prime is 157610161187. The reversal of 157610161097 is 790161016751.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155195814601 + 2414346496 = 393949^2 + 49136^2 .

It is a cyclic number.

It is not a de Polignac number, because 157610161097 - 2¹⁰ = 157610160073 is a prime.

It is not a weakly prime, because it can be changed into another prime (157610161697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78805080548 + 78805080549.

It is an arithmetic number, because the mean of its divisors is an integer number (78805080549).

Almost surely, 2^157610161097 is an apocalyptic number.

It is an amenable number.

157610161097 is a deficient number, since it is larger than the sum of its proper divisors (1).

157610161097 is an equidigital number, since it uses as much as digits as its factorization.

157610161097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 44.

The spelling of 157610161097 in words is "one hundred fifty-seven billion, six hundred ten million, one hundred sixty-one thousand, ninety-seven".