161252610371 has 2 divisors, whose sum is σ = 161252610372. Its totient is φ = 161252610370.

The previous prime is 161252610347. The next prime is 161252610413. The reversal of 161252610371 is 173016252161.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (173016252161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161252610371 - 2⁶ = 161252610307 is a prime.

It is not a weakly prime, because it can be changed into another prime (161252610301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80626305185 + 80626305186.

It is an arithmetic number, because the mean of its divisors is an integer number (80626305186).

Almost surely, 2^161252610371 is an apocalyptic number.

161252610371 is a deficient number, since it is larger than the sum of its proper divisors (1).

161252610371 is an equidigital number, since it uses as much as digits as its factorization.

161252610371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 161252610371 in words is "one hundred sixty-one billion, two hundred fifty-two million, six hundred ten thousand, three hundred seventy-one".