6667400074 has 16 divisors (see below), whose sum is σ = 10521926856. Its totient is φ = 3164486400.

The previous prime is 6667400039. The next prime is 6667400093. The reversal of 6667400074 is 4700047666.

It can be written as a sum of positive squares in 4 ways, for example, as 4483239849 + 2184160225 = 66957^2 + 46735^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095747 + ... + 1101814.

Almost surely, 2^6667400074 is an apocalyptic number.

6667400074 is a deficient number, since it is larger than the sum of its proper divisors (3854526782).

6667400074 is a wasteful number, since it uses less digits than its factorization.

6667400074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197641.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 6667400074 is about 81654.1491536101. The cubic root of 6667400074 is about 1882.1410715038.

The spelling of 6667400074 in words is "six billion, six hundred sixty-seven million, four hundred thousand, seventy-four".