17997216126 has 16 divisors (see below), whose sum is σ = 36003014400. Its totient is φ = 5997641688.

The previous prime is 17997216091. The next prime is 17997216179. The reversal of 17997216126 is 62161279971.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330166 + ... + 380793.

It is an arithmetic number, because the mean of its divisors is an integer number (2250188400).

Almost surely, 2^17997216126 is an apocalyptic number.

17997216126 is an abundant number, since it is smaller than the sum of its proper divisors (18005798274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17997216126 is a wasteful number, since it uses less digits than its factorization.

17997216126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715183.

The product of its digits is 571536, while the sum is 51.

The spelling of 17997216126 in words is "seventeen billion, nine hundred ninety-seven million, two hundred sixteen thousand, one hundred twenty-six".