156000205700001 has 24 divisors (see below), whose sum is σ = 242746264231016. Its totient is φ = 95968764023040.

The previous prime is 156000205699889. The next prime is 156000205700021. The reversal of 156000205700001 is 100007502000651.

156000205700001 is a `hidden beast` number, since 1 + 5 + 600 + 0 + 2 + 0 + 57 + 0 + 0 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2672636432400 + 153327569267601 = 1634820^2 + 12382551^2 .

It is not a de Polignac number, because 156000205700001 - 2⁷ = 156000205699873 is a prime.

It is a super-2 number, since 2×156000205700001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156000205700021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217435900 + ... + 218152173.

Almost surely, 2^{156000205700001} is an apocalyptic number.

It is an amenable number.

156000205700001 is a deficient number, since it is larger than the sum of its proper divisors (86746058531015).

156000205700001 is a wasteful number, since it uses less digits than its factorization.

156000205700001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435591153 (or 435591150 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

Adding to 156000205700001 its reverse (100007502000651), we get a palindrome (256007707700652).

The spelling of 156000205700001 in words is "one hundred fifty-six trillion, two hundred five million, seven hundred thousand, one".