156420006066 has 40 divisors (see below), whose sum is σ = 350582985324. Its totient is φ = 52127163360.

The previous prime is 156420006049. The next prime is 156420006089. The reversal of 156420006066 is 660600024651.

It is a happy number.

156420006066 is a `hidden beast` number, since 1 + 5 + 6 + 42 + 0 + 0 + 0 + 606 + 6 = 666.

156420006066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 151340450625 + 5079555441 = 389025^2 + 71271^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 156420006066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 552736 + ... + 786356.

Almost surely, 2^156420006066 is an apocalyptic number.

156420006066 is an abundant number, since it is smaller than the sum of its proper divisors (194162979258).

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

156420006066 is a wasteful number, since it uses less digits than its factorization.

156420006066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237768 (or 237759 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 156420006066 in words is "one hundred fifty-six billion, four hundred twenty million, six thousand, sixty-six".