206999426070 has 56 divisors (see below), whose sum is σ = 558642915216. Its totient is φ = 55199845008.

The previous prime is 206999426041. The next prime is 206999426083. The reversal of 206999426070 is 70624999602.

206999426070 is a `hidden beast` number, since 2 + 0 + 69 + 99 + 426 + 0 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 206999425998 and 206999426016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 14190202 + ... + 14204781.

Almost surely, 2^206999426070 is an apocalyptic number.

206999426070 is an abundant number, since it is smaller than the sum of its proper divisors (351643489146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206999426070 is an equidigital number, since it uses as much as digits as its factorization.

206999426070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28395008 (or 28394993 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 206999426070 in words is "two hundred six billion, nine hundred ninety-nine million, four hundred twenty-six thousand, seventy".