2666667494 has 8 divisors (see below), whose sum is σ = 4000508568. Its totient is φ = 1333164640.

The previous prime is 2666667463. The next prime is 2666667503. The reversal of 2666667494 is 4947666662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2666667494² = 14222231047112480072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63827 + ... + 96990.

It is an arithmetic number, because the mean of its divisors is an integer number (500063571).

Almost surely, 2^2666667494 is an apocalyptic number.

2666667494 is a deficient number, since it is larger than the sum of its proper divisors (1333841074).

2666667494 is a wasteful number, since it uses less digits than its factorization.

2666667494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169110.

The product of its digits is 15676416, while the sum is 56.

The square root of 2666667494 is about 51639.7859600522. The cubic root of 2666667494 is about 1386.7226921115.

The spelling of 2666667494 in words is "two billion, six hundred sixty-six million, six hundred sixty-seven thousand, four hundred ninety-four".