667400336734 has 16 divisors (see below), whose sum is σ = 1007140998528. Its totient is φ = 331686852952.

The previous prime is 667400336693. The next prime is 667400336737. The reversal of 667400336734 is 437633004766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667400336737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12313257 + ... + 12367339.

It is an arithmetic number, because the mean of its divisors is an integer number (62946312408).

Almost surely, 2^667400336734 is an apocalyptic number.

667400336734 is a deficient number, since it is larger than the sum of its proper divisors (339740661794).

667400336734 is a wasteful number, since it uses less digits than its factorization.

667400336734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91199.

The product of its (nonzero) digits is 4572288, while the sum is 49.

The spelling of 667400336734 in words is "six hundred sixty-seven billion, four hundred million, three hundred thirty-six thousand, seven hundred thirty-four".