2663666046 has 160 divisors (see below), whose sum is σ = 6568708608. Its totient is φ = 803416320.

The previous prime is 2663666039. The next prime is 2663666059. The reversal of 2663666046 is 6406663662.

It is a super-2 number, since 2×2663666046² = 14190233609226548232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2663665992 and 2663666010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9828891 + ... + 9829161.

Almost surely, 2^2663666046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2663666046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3284354304).

2663666046 is an abundant number, since it is smaller than the sum of its proper divisors (3905042562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2663666046 is a wasteful number, since it uses less digits than its factorization.

2663666046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The square root of 2663666046 is about 51610.7163872001. The cubic root of 2663666046 is about 1386.2022249483.

The spelling of 2663666046 in words is "two billion, six hundred sixty-three million, six hundred sixty-six thousand, forty-six".