12402454022665 has 48 divisors (see below), whose sum is σ = 18428778892800. Its totient is φ = 7966404940032.

The previous prime is 12402454022663. The next prime is 12402454022681. The reversal of 12402454022665 is 56622045420421.

It is not a de Polignac number, because 12402454022665 - 2¹ = 12402454022663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12402454022663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14553849 + ... + 15382438.

It is an arithmetic number, because the mean of its divisors is an integer number (383932893600).

Almost surely, 2^{12402454022665} is an apocalyptic number.

It is an amenable number.

12402454022665 is a deficient number, since it is larger than the sum of its proper divisors (6026324870135).

12402454022665 is a wasteful number, since it uses less digits than its factorization.

12402454022665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29936414 (or 29936407 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 12402454022665 in words is "twelve trillion, four hundred two billion, four hundred fifty-four million, twenty-two thousand, six hundred sixty-five".