2163451662505 has 24 divisors (see below), whose sum is σ = 3035813506560. Its totient is φ = 1475742612960.

The previous prime is 2163451662473. The next prime is 2163451662511. The reversal of 2163451662505 is 5052661543612.

It is not a de Polignac number, because 2163451662505 - 2⁵ = 2163451662473 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 23069475 + ... + 23163064.

It is an arithmetic number, because the mean of its divisors is an integer number (126492229440).

Almost surely, 2^{2163451662505} is an apocalyptic number.

It is an amenable number.

2163451662505 is a deficient number, since it is larger than the sum of its proper divisors (872361844055).

2163451662505 is a wasteful number, since it uses less digits than its factorization.

2163451662505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46232749 (or 46232742 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 2163451662505 in words is "two trillion, one hundred sixty-three billion, four hundred fifty-one million, six hundred sixty-two thousand, five hundred five".