12659771553 has 16 divisors (see below), whose sum is σ = 19830691776. Its totient is φ = 7082389440.

The previous prime is 12659771543. The next prime is 12659771581. The reversal of 12659771553 is 35517795621.

It is not a de Polignac number, because 12659771553 - 2¹² = 12659767457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12659771496 and 12659771505.

It is not an unprimeable number, because it can be changed into a prime (12659771543) 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, 14754550 + ... + 14755407.

It is an arithmetic number, because the mean of its divisors is an integer number (1239418236).

Almost surely, 2^12659771553 is an apocalyptic number.

12659771553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12659771553 is a deficient number, since it is larger than the sum of its proper divisors (7170920223).

12659771553 is a wasteful number, since it uses less digits than its factorization.

12659771553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29509984.

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

The spelling of 12659771553 in words is "twelve billion, six hundred fifty-nine million, seven hundred seventy-one thousand, five hundred fifty-three".