2666640240435 has 16 divisors (see below), whose sum is σ = 4266658669824. Its totient is φ = 1422196699872.

The previous prime is 2666640240419. The next prime is 2666640240443. The reversal of 2666640240435 is 5340420466662.

2666640240435 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2666640240435 - 2⁴ = 2666640240419 is a prime.

It is a super-2 number, since 2×2666640240435² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1420434 + ... + 2711256.

It is an arithmetic number, because the mean of its divisors is an integer number (266666166864).

Almost surely, 2^{2666640240435} is an apocalyptic number.

2666640240435 is a deficient number, since it is larger than the sum of its proper divisors (1600018429389).

2666640240435 is a wasteful number, since it uses less digits than its factorization.

2666640240435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428554.

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 2666640240435 in words is "two trillion, six hundred sixty-six billion, six hundred forty million, two hundred forty thousand, four hundred thirty-five".