400700666671 has 8 divisors (see below), whose sum is σ = 401202367488. Its totient is φ = 400199187000.

The previous prime is 400700666669. The next prime is 400700666677. The reversal of 400700666671 is 176666007004.

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 400700666671 - 2¹ = 400700666669 is a prime.

It is a super-2 number, since 2×400700666671² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400700666677) 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, 3731866 + ... + 3837736.

It is an arithmetic number, because the mean of its divisors is an integer number (50150295936).

Almost surely, 2^400700666671 is an apocalyptic number.

400700666671 is a deficient number, since it is larger than the sum of its proper divisors (501700817).

400700666671 is a wasteful number, since it uses less digits than its factorization.

400700666671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110573.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 400700666671 in words is "four hundred billion, seven hundred million, six hundred sixty-six thousand, six hundred seventy-one".