206423021425500 has 144 divisors (see below), whose sum is σ = 710395445541600. Its totient is φ = 50041944576000.

The previous prime is 206423021425447. The next prime is 206423021425519. The reversal of 206423021425500 is 5524120324602.

206423021425500 is a `hidden beast` number, since 2 + 0 + 6 + 4 + 2 + 3 + 0 + 2 + 142 + 5 + 500 = 666.

It is a super-2 number, since 2×206423021425500² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2085031525 + ... + 2085130524.

It is an arithmetic number, because the mean of its divisors is an integer number (4933301705150).

Almost surely, 2^{206423021425500} is an apocalyptic number.

206423021425500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206423021425500 is an abundant number, since it is smaller than the sum of its proper divisors (503972424116100).

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

206423021425500 is a wasteful number, since it uses less digits than its factorization.

206423021425500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170162085 (or 4170162070 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 206423021425500 in words is "two hundred six trillion, four hundred twenty-three billion, twenty-one million, four hundred twenty-five thousand, five hundred".