6667783401 has 8 divisors (see below), whose sum is σ = 9413341344. Its totient is φ = 4183707200.

The previous prime is 6667783393. The next prime is 6667783403. The reversal of 6667783401 is 1043877666.

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

It is a cyclic number.

It is not a de Polignac number, because 6667783401 - 2³ = 6667783393 is a prime.

It is a super-2 number, since 2×6667783401² = 88918670965302253602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6667783403) 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, 65370375 + ... + 65370476.

It is an arithmetic number, because the mean of its divisors is an integer number (1176667668).

Almost surely, 2^6667783401 is an apocalyptic number.

It is an amenable number.

6667783401 is a deficient number, since it is larger than the sum of its proper divisors (2745557943).

6667783401 is a wasteful number, since it uses less digits than its factorization.

6667783401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130740871.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 6667783401 is about 81656.4963796513. The cubic root of 6667783401 is about 1882.1771406190.

The spelling of 6667783401 in words is "six billion, six hundred sixty-seven million, seven hundred eighty-three thousand, four hundred one".