6920812842166 has 4 divisors (see below), whose sum is σ = 10381219263252. Its totient is φ = 3460406421082.

The previous prime is 6920812842137. The next prime is 6920812842179. The reversal of 6920812842166 is 6612482180296.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1730203210540 + ... + 1730203210543.

It is an arithmetic number, because the mean of its divisors is an integer number (2595304815813).

Almost surely, 2^{6920812842166} is an apocalyptic number.

6920812842166 is a deficient number, since it is larger than the sum of its proper divisors (3460406421086).

6920812842166 is a wasteful number, since it uses less digits than its factorization.

6920812842166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460406421085.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 6920812842166 in words is "six trillion, nine hundred twenty billion, eight hundred twelve million, eight hundred forty-two thousand, one hundred sixty-six".