669670213143 has 32 divisors (see below), whose sum is σ = 970283930112. Its totient is φ = 409275776000.

The previous prime is 669670213133. The next prime is 669670213213. The reversal of 669670213143 is 341312076966.

It is a cyclic number.

It is not a de Polignac number, because 669670213143 - 2⁴ = 669670213127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 669670213092 and 669670213101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669670213103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813558 + ... + 1414643.

It is an arithmetic number, because the mean of its divisors is an integer number (30321372816).

Almost surely, 2^669670213143 is an apocalyptic number.

669670213143 is a deficient number, since it is larger than the sum of its proper divisors (300613716969).

669670213143 is a wasteful number, since it uses less digits than its factorization.

669670213143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228375.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 669670213143 in words is "six hundred sixty-nine billion, six hundred seventy million, two hundred thirteen thousand, one hundred forty-three".