667151413426 has 8 divisors (see below), whose sum is σ = 1001194537644. Its totient is φ = 333419900880.

The previous prime is 667151413351. The next prime is 667151413427. The reversal of 667151413426 is 624314151766.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 423807510025 + 243343903401 = 651005^2 + 493299^2 .

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

It is not an unprimeable number, because it can be changed into a prime (667151413427) by changing a digit.

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, 77897565 + ... + 77906128.

Almost surely, 2^667151413426 is an apocalyptic number.

667151413426 is a deficient number, since it is larger than the sum of its proper divisors (334043124218).

667151413426 is a wasteful number, since it uses less digits than its factorization.

667151413426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155805836.

The product of its digits is 725760, while the sum is 46.

The spelling of 667151413426 in words is "six hundred sixty-seven billion, one hundred fifty-one million, four hundred thirteen thousand, four hundred twenty-six".