12740166735 has 8 divisors (see below), whose sum is σ = 20384266800. Its totient is φ = 6794755584.

The previous prime is 12740166727. The next prime is 12740166779. The reversal of 12740166735 is 53766104721.

It is a happy number.

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

It is not a de Polignac number, because 12740166735 - 2³ = 12740166727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424672210 + ... + 424672239.

It is an arithmetic number, because the mean of its divisors is an integer number (2548033350).

Almost surely, 2^12740166735 is an apocalyptic number.

12740166735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12740166735 is a deficient number, since it is larger than the sum of its proper divisors (7644100065).

12740166735 is an equidigital number, since it uses as much as digits as its factorization.

12740166735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849344457.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 12740166735 in words is "twelve billion, seven hundred forty million, one hundred sixty-six thousand, seven hundred thirty-five".