12135766502 has 4 divisors (see below), whose sum is σ = 18203649756. Its totient is φ = 6067883250.

The previous prime is 12135766499. The next prime is 12135766541. The reversal of 12135766502 is 20566753121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3033941624 + ... + 3033941627.

It is an arithmetic number, because the mean of its divisors is an integer number (4550912439).

Almost surely, 2^12135766502 is an apocalyptic number.

12135766502 is a deficient number, since it is larger than the sum of its proper divisors (6067883254).

12135766502 is an equidigital number, since it uses as much as digits as its factorization.

12135766502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067883253.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 12135766502 in words is "twelve billion, one hundred thirty-five million, seven hundred sixty-six thousand, five hundred two".