206426164502 has 8 divisors (see below), whose sum is σ = 309653980056. Its totient is φ = 103208171152.

The previous prime is 206426164493. The next prime is 206426164561. The reversal of 206426164502 is 205461624602.

206426164502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×206426164502² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2402783 + ... + 2487210.

It is an arithmetic number, because the mean of its divisors is an integer number (38706747507).

Almost surely, 2^206426164502 is an apocalyptic number.

206426164502 is a deficient number, since it is larger than the sum of its proper divisors (103227815554).

206426164502 is a wasteful number, since it uses less digits than its factorization.

206426164502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911102.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 206426164502 in words is "two hundred six billion, four hundred twenty-six million, one hundred sixty-four thousand, five hundred two".