12510166995 has 24 divisors (see below), whose sum is σ = 21687565536. Its totient is φ = 6671081088.

The previous prime is 12510166987. The next prime is 12510167003. The reversal of 12510166995 is 59966101521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12510166987) and next prime (12510167003).

It is not a de Polignac number, because 12510166995 - 2³ = 12510166987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12510166995.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353602 + ... + 387368.

It is an arithmetic number, because the mean of its divisors is an integer number (903648564).

Almost surely, 2^12510166995 is an apocalyptic number.

12510166995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12510166995 is a deficient number, since it is larger than the sum of its proper divisors (9177398541).

12510166995 is a wasteful number, since it uses less digits than its factorization.

12510166995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42011 (or 42008 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 45.

The spelling of 12510166995 in words is "twelve billion, five hundred ten million, one hundred sixty-six thousand, nine hundred ninety-five".