667422317401 has 32 divisors (see below), whose sum is σ = 792403349760. Its totient is φ = 550019441664.

The previous prime is 667422317351. The next prime is 667422317413. The reversal of 667422317401 is 104713224766.

It is not a de Polignac number, because 667422317401 - 2¹¹ = 667422315353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667422317431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109896901 + ... + 109902973.

It is an arithmetic number, because the mean of its divisors is an integer number (24762604680).

Almost surely, 2^667422317401 is an apocalyptic number.

It is an amenable number.

667422317401 is a deficient number, since it is larger than the sum of its proper divisors (124981032359).

667422317401 is a wasteful number, since it uses less digits than its factorization.

667422317401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8305.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 667422317401 in words is "six hundred sixty-seven billion, four hundred twenty-two million, three hundred seventeen thousand, four hundred one".