161374838351 has 2 divisors, whose sum is σ = 161374838352. Its totient is φ = 161374838350.

The previous prime is 161374838327. The next prime is 161374838381. The reversal of 161374838351 is 153838473161.

161374838351 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 a de Polignac number, because none of the positive numbers 2^k-161374838351 is a prime.

It is a super-2 number, since 2×161374838351² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161374838351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161374838311) 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, 80687419175 + 80687419176.

It is an arithmetic number, because the mean of its divisors is an integer number (80687419176).

Almost surely, 2^161374838351 is an apocalyptic number.

161374838351 is a deficient number, since it is larger than the sum of its proper divisors (1).

161374838351 is an equidigital number, since it uses as much as digits as its factorization.

161374838351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The spelling of 161374838351 in words is "one hundred sixty-one billion, three hundred seventy-four million, eight hundred thirty-eight thousand, three hundred fifty-one".