13299987766 has 32 divisors (see below), whose sum is σ = 21657404160. Its totient is φ = 6089245824.

The previous prime is 13299987737. The next prime is 13299987769. The reversal of 13299987766 is 66778999231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13299987769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2151456 + ... + 2157628.

It is an arithmetic number, because the mean of its divisors is an integer number (676793880).

Almost surely, 2^13299987766 is an apocalyptic number.

13299987766 is a deficient number, since it is larger than the sum of its proper divisors (8357416394).

13299987766 is a wasteful number, since it uses less digits than its factorization.

13299987766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840.

The product of its digits is 61725888, while the sum is 67.

The spelling of 13299987766 in words is "thirteen billion, two hundred ninety-nine million, nine hundred eighty-seven thousand, seven hundred sixty-six".