6667400734 has 16 divisors (see below), whose sum is σ = 10059090048. Its totient is φ = 3314410272.

The previous prime is 6667400699. The next prime is 6667400767. The reversal of 6667400734 is 4370047666.

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 7 ways as a sum of consecutive naturals, for example, 346084 + ... + 364840.

It is an arithmetic number, because the mean of its divisors is an integer number (628693128).

Almost surely, 2^6667400734 is an apocalyptic number.

6667400734 is a deficient number, since it is larger than the sum of its proper divisors (3391689314).

6667400734 is a wasteful number, since it uses less digits than its factorization.

6667400734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19779.

The product of its (nonzero) digits is 508032, while the sum is 43.

The square root of 6667400734 is about 81654.1531950457. The cubic root of 6667400734 is about 1882.1411336076.

It can be divided in two parts, 66 and 67400734, that multiplied together give a palindrome (4448448444).

The spelling of 6667400734 in words is "six billion, six hundred sixty-seven million, four hundred thousand, seven hundred thirty-four".