670405911866 has 8 divisors (see below), whose sum is σ = 1007287682400. Its totient is φ = 334643351068.

The previous prime is 670405911859. The next prime is 670405911881. The reversal of 670405911866 is 668119504076.

670405911866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279800936 + ... + 279803331.

It is an arithmetic number, because the mean of its divisors is an integer number (125910960300).

Almost surely, 2^670405911866 is an apocalyptic number.

670405911866 is a deficient number, since it is larger than the sum of its proper divisors (336881770534).

670405911866 is a wasteful number, since it uses less digits than its factorization.

670405911866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559604868.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 670405911866 in words is "six hundred seventy billion, four hundred five million, nine hundred eleven thousand, eight hundred sixty-six".