2640363066 has 24 divisors (see below), whose sum is σ = 6240858624. Its totient is φ = 800109960.

The previous prime is 2640363023. The next prime is 2640363067. The reversal of 2640363066 is 6603630462.

2640363066 is a `hidden beast` number, since 2 + 640 + 3 + 6 + 3 + 0 + 6 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2640363066.

It is not an unprimeable number, because it can be changed into a prime (2640363067) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6667386 + ... + 6667781.

It is an arithmetic number, because the mean of its divisors is an integer number (260035776).

Almost surely, 2^2640363066 is an apocalyptic number.

2640363066 is an abundant number, since it is smaller than the sum of its proper divisors (3600495558).

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

2640363066 is a wasteful number, since it uses less digits than its factorization.

2640363066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335186 (or 13335183 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The square root of 2640363066 is about 51384.4632744179. The cubic root of 2640363066 is about 1382.1480001617.

The spelling of 2640363066 in words is "two billion, six hundred forty million, three hundred sixty-three thousand, sixty-six".