6667400735 has 16 divisors (see below), whose sum is σ = 8095489920. Its totient is φ = 5270918400.

The previous prime is 6667400699. The next prime is 6667400767. The reversal of 6667400735 is 5370047666.

It is not a de Polignac number, because 6667400735 - 2¹² = 6667396639 is a prime.

It is a super-2 number, since 2×6667400735² = 88908465122157080450, which contains 22 as substring.

It is a congruent number.

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, 1043009 + ... + 1049381.

It is an arithmetic number, because the mean of its divisors is an integer number (505968120).

Almost surely, 2^6667400735 is an apocalyptic number.

6667400735 is a deficient number, since it is larger than the sum of its proper divisors (1428089185).

6667400735 is a wasteful number, since it uses less digits than its factorization.

6667400735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8818.

The product of its (nonzero) digits is 635040, while the sum is 44.

The square root of 6667400735 is about 81654.1532011691. The cubic root of 6667400735 is about 1882.1411337017.

The spelling of 6667400735 in words is "six billion, six hundred sixty-seven million, four hundred thousand, seven hundred thirty-five".