123197555607 has 16 divisors (see below), whose sum is σ = 193785403392. Its totient is φ = 68127680160.

The previous prime is 123197555567. The next prime is 123197555609. The reversal of 123197555607 is 706555791321.

It is not a de Polignac number, because 123197555607 - 2¹⁰ = 123197554583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123197555607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123197555609) 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, 94621128 + ... + 94622429.

It is an arithmetic number, because the mean of its divisors is an integer number (12111587712).

Almost surely, 2^123197555607 is an apocalyptic number.

123197555607 is a deficient number, since it is larger than the sum of its proper divisors (70587847785).

123197555607 is a wasteful number, since it uses less digits than its factorization.

123197555607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189243598.

The product of its (nonzero) digits is 1984500, while the sum is 51.

The spelling of 123197555607 in words is "one hundred twenty-three billion, one hundred ninety-seven million, five hundred fifty-five thousand, six hundred seven".