2163451662506 has 8 divisors (see below), whose sum is σ = 3415976309280. Its totient is φ = 1024792892748.

The previous prime is 2163451662473. The next prime is 2163451662511. The reversal of 2163451662506 is 6052661543612.

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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28466469206 + ... + 28466469281.

It is an arithmetic number, because the mean of its divisors is an integer number (426997038660).

Almost surely, 2^{2163451662506} is an apocalyptic number.

2163451662506 is a deficient number, since it is larger than the sum of its proper divisors (1252524646774).

2163451662506 is a wasteful number, since it uses less digits than its factorization.

2163451662506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56932938508.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 2163451662506 in words is "two trillion, one hundred sixty-three billion, four hundred fifty-one million, six hundred sixty-two thousand, five hundred six".