12061640354 has 4 divisors (see below), whose sum is σ = 18092460534. Its totient is φ = 6030820176.

The previous prime is 12061640341. The next prime is 12061640407. The reversal of 12061640354 is 45304616021.

12061640354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 9859497025 + 2202143329 = 99295^2 + 46927^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12061640354.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3015410087 + ... + 3015410090.

Almost surely, 2^12061640354 is an apocalyptic number.

12061640354 is a deficient number, since it is larger than the sum of its proper divisors (6030820180).

12061640354 is an equidigital number, since it uses as much as digits as its factorization.

12061640354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6030820179.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 12061640354 in words is "twelve billion, sixty-one million, six hundred forty thousand, three hundred fifty-four".