12157026117 has 16 divisors (see below), whose sum is σ = 16516910592. Its totient is φ = 7951878000.

The previous prime is 12157026109. The next prime is 12157026121. The reversal of 12157026117 is 71162075121.

It is not a de Polignac number, because 12157026117 - 2³ = 12157026109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157021117) 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, 70033 + ... + 170934.

It is an arithmetic number, because the mean of its divisors is an integer number (1032306912).

Almost surely, 2^12157026117 is an apocalyptic number.

It is an amenable number.

12157026117 is a deficient number, since it is larger than the sum of its proper divisors (4359884475).

12157026117 is a wasteful number, since it uses less digits than its factorization.

12157026117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241288.

The product of its (nonzero) digits is 5880, while the sum is 33.

The spelling of 12157026117 in words is "twelve billion, one hundred fifty-seven million, twenty-six thousand, one hundred seventeen".