161426511359 has 4 divisors (see below), whose sum is σ = 161428106760. Its totient is φ = 161424915960.

The previous prime is 161426511317. The next prime is 161426511361. The reversal of 161426511359 is 953115624161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161426511359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161426501359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634844 + ... + 851985.

It is an arithmetic number, because the mean of its divisors is an integer number (40357026690).

Almost surely, 2^161426511359 is an apocalyptic number.

161426511359 is a deficient number, since it is larger than the sum of its proper divisors (1595401).

161426511359 is a wasteful number, since it uses less digits than its factorization.

161426511359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595400.

The product of its digits is 194400, while the sum is 44.

The spelling of 161426511359 in words is "one hundred sixty-one billion, four hundred twenty-six million, five hundred eleven thousand, three hundred fifty-nine".