2153663451466 has 8 divisors (see below), whose sum is σ = 3238168563684. Its totient is φ = 1074273930240.

The previous prime is 2153663451451. The next prime is 2153663451517. The reversal of 2153663451466 is 6641543663512.

It can be written as a sum of positive squares in 2 ways, for example, as 2142502585441 + 11160866025 = 1463729^2 + 105645^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278896695 + ... + 1278898378.

Almost surely, 2^{2153663451466} is an apocalyptic number.

2153663451466 is a deficient number, since it is larger than the sum of its proper divisors (1084505112218).

2153663451466 is a wasteful number, since it uses less digits than its factorization.

2153663451466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557795496.

The product of its digits is 9331200, while the sum is 52.

The spelling of 2153663451466 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-three million, four hundred fifty-one thousand, four hundred sixty-six".