12699896085 has 72 divisors (see below), whose sum is σ = 23503544064. Its totient is φ = 6340382400.

The previous prime is 12699896081. The next prime is 12699896113. The reversal of 12699896085 is 58069899621.

12699896085 is a `hidden beast` number, since 12 + 6 + 9 + 9 + 8 + 9 + 608 + 5 = 666.

12699896085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12699896085 - 2² = 12699896081 is a prime.

It is a super-2 number, since 2×12699896085² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12699896081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1113160 + ... + 1124510.

It is an arithmetic number, because the mean of its divisors is an integer number (326438112).

Almost surely, 2^12699896085 is an apocalyptic number.

12699896085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12699896085 is a deficient number, since it is larger than the sum of its proper divisors (10803647979).

12699896085 is a wasteful number, since it uses less digits than its factorization.

12699896085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11455 (or 11429 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 12699896085 in words is "twelve billion, six hundred ninety-nine million, eight hundred ninety-six thousand, eighty-five".