109958565597 has 4 divisors (see below), whose sum is σ = 146611420800. Its totient is φ = 73305710396.

The previous prime is 109958565539. The next prime is 109958565617. The reversal of 109958565597 is 795565859901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 795565859901 = 3 ⋅265188619967.

It is a cyclic number.

It is not a de Polignac number, because 109958565597 - 2²⁴ = 109941788381 is a prime.

It is a super-2 number, since 2×109958565597² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109950565597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18326427597 + ... + 18326427602.

It is an arithmetic number, because the mean of its divisors is an integer number (36652855200).

Almost surely, 2^109958565597 is an apocalyptic number.

It is an amenable number.

109958565597 is a deficient number, since it is larger than the sum of its proper divisors (36652855203).

109958565597 is an equidigital number, since it uses as much as digits as its factorization.

109958565597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36652855202.

The product of its (nonzero) digits is 153090000, while the sum is 69.

The spelling of 109958565597 in words is "one hundred nine billion, nine hundred fifty-eight million, five hundred sixty-five thousand, five hundred ninety-seven".