123466550427 has 16 divisors (see below), whose sum is σ = 199541900160. Its totient is φ = 74828212200.

The previous prime is 123466550411. The next prime is 123466550477. The reversal of 123466550427 is 724055664321.

123466550427 is a `hidden beast` number, since 1 + 2 + 34 + 66 + 550 + 4 + 2 + 7 = 666.

It is not a de Polignac number, because 123466550427 - 2⁴ = 123466550411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123466550477) 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, 207855849 + ... + 207856442.

It is an arithmetic number, because the mean of its divisors is an integer number (12471368760).

Almost surely, 2^123466550427 is an apocalyptic number.

123466550427 is a deficient number, since it is larger than the sum of its proper divisors (76075349733).

123466550427 is a wasteful number, since it uses less digits than its factorization.

123466550427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415712311 (or 415712305 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 123466550427 in words is "one hundred twenty-three billion, four hundred sixty-six million, five hundred fifty thousand, four hundred twenty-seven".