12555206247 has 8 divisors (see below), whose sum is σ = 16788242800. Its totient is φ = 8346153600.

The previous prime is 12555206227. The next prime is 12555206249. The reversal of 12555206247 is 74260255521.

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

It is not a de Polignac number, because 12555206247 - 2²³ = 12546817639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555206249) 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, 5994754 + ... + 5996847.

It is an arithmetic number, because the mean of its divisors is an integer number (2098530350).

Almost surely, 2^12555206247 is an apocalyptic number.

12555206247 is a deficient number, since it is larger than the sum of its proper divisors (4233036553).

12555206247 is a wasteful number, since it uses less digits than its factorization.

12555206247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11991953.

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 12555206247 in words is "twelve billion, five hundred fifty-five million, two hundred six thousand, two hundred forty-seven".