109917142766 has 4 divisors (see below), whose sum is σ = 164875714152. Its totient is φ = 54958571382.

The previous prime is 109917142759. The next prime is 109917142781. The reversal of 109917142766 is 667241719901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 667241719901 = 29 ⋅23008335169.

It is a super-2 number, since 2×109917142766² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27479285690 + ... + 27479285693.

It is an arithmetic number, because the mean of its divisors is an integer number (41218928538).

Almost surely, 2^109917142766 is an apocalyptic number.

109917142766 is a deficient number, since it is larger than the sum of its proper divisors (54958571386).

109917142766 is an equidigital number, since it uses as much as digits as its factorization.

109917142766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54958571385.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 109917142766 in words is "one hundred nine billion, nine hundred seventeen million, one hundred forty-two thousand, seven hundred sixty-six".