7667001006671 has 4 divisors (see below), whose sum is σ = 7830128687712. Its totient is φ = 7503873325632.

The previous prime is 7667001006607. The next prime is 7667001006677. The reversal of 7667001006671 is 1766001007667.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7667001006671 - 2⁶ = 7667001006607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 163127680993 = 7667001006671 / (7 + 6 + 6 + 7 + 0 + 0 + 1 + 0 + 0 + 6 + 6 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7667001006677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81563840450 + ... + 81563840543.

It is an arithmetic number, because the mean of its divisors is an integer number (1957532171928).

Almost surely, 2^{7667001006671} is an apocalyptic number.

7667001006671 is a deficient number, since it is larger than the sum of its proper divisors (163127681041).

7667001006671 is a wasteful number, since it uses less digits than its factorization.

7667001006671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163127681040.

The product of its (nonzero) digits is 444528, while the sum is 47.

The spelling of 7667001006671 in words is "seven trillion, six hundred sixty-seven billion, one million, six thousand, six hundred seventy-one".