667214034081 has 8 divisors (see below), whose sum is σ = 1016707099584. Its totient is φ = 381265162320.

The previous prime is 667214034079. The next prime is 667214034127. The reversal of 667214034081 is 180430412766.

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

It is not a de Polignac number, because 667214034081 - 2¹ = 667214034079 is a prime.

It is a super-2 number, since 2×667214034081² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (667214034281) 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, 15886048410 + ... + 15886048451.

It is an arithmetic number, because the mean of its divisors is an integer number (127088387448).

Almost surely, 2^667214034081 is an apocalyptic number.

It is an amenable number.

667214034081 is a deficient number, since it is larger than the sum of its proper divisors (349493065503).

667214034081 is a wasteful number, since it uses less digits than its factorization.

667214034081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31772096871.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 667214034081 in words is "six hundred sixty-seven billion, two hundred fourteen million, thirty-four thousand, eighty-one".