12100636465 has 8 divisors (see below), whose sum is σ = 15374926440. Its totient is φ = 9111067392.

The previous prime is 12100636453. The next prime is 12100636469. The reversal of 12100636465 is 56463600121.

It can be written as a sum of positive squares in 4 ways, for example, as 6522339121 + 5578297344 = 80761^2 + 74688^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12100636465 - 2²⁹ = 11563765553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12100636465.

It is not an unprimeable number, because it can be changed into a prime (12100636469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71180130 + ... + 71180299.

It is an arithmetic number, because the mean of its divisors is an integer number (1921865805).

Almost surely, 2^12100636465 is an apocalyptic number.

It is an amenable number.

12100636465 is a deficient number, since it is larger than the sum of its proper divisors (3274289975).

12100636465 is a wasteful number, since it uses less digits than its factorization.

12100636465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142360451.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 12100636465 in words is "twelve billion, one hundred million, six hundred thirty-six thousand, four hundred sixty-five".