161126150225261 has 16 divisors (see below), whose sum is σ = 173564476366848. Its totient is φ = 148694115398400.

The previous prime is 161126150225221. The next prime is 161126150225393. The reversal of 161126150225261 is 162522051621161.

It is a de Polignac number, because none of the positive numbers 2^k-161126150225261 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 (161126150225221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922019285 + ... + 922194021.

It is an arithmetic number, because the mean of its divisors is an integer number (10847779772928).

Almost surely, 2^{161126150225261} is an apocalyptic number.

It is an amenable number.

161126150225261 is a deficient number, since it is larger than the sum of its proper divisors (12438326141587).

161126150225261 is a wasteful number, since it uses less digits than its factorization.

161126150225261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192332.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 161126150225261 in words is "one hundred sixty-one trillion, one hundred twenty-six billion, one hundred fifty million, two hundred twenty-five thousand, two hundred sixty-one".