12663312477 has 8 divisors (see below), whose sum is σ = 17277077664. Its totient is φ = 8245877808.

The previous prime is 12663312449. The next prime is 12663312503. The reversal of 12663312477 is 77421336621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12663312477 - 2⁷ = 12663312349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663312877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49082478 + ... + 49082735.

It is an arithmetic number, because the mean of its divisors is an integer number (2159634708).

Almost surely, 2^12663312477 is an apocalyptic number.

It is an amenable number.

12663312477 is a deficient number, since it is larger than the sum of its proper divisors (4613765187).

12663312477 is an equidigital number, since it uses as much as digits as its factorization.

12663312477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98165259.

The product of its digits is 254016, while the sum is 42.

The spelling of 12663312477 in words is "twelve billion, six hundred sixty-three million, three hundred twelve thousand, four hundred seventy-seven".