206503137470 has 32 divisors (see below), whose sum is σ = 425133164736. Its totient is φ = 70746624000.

The previous prime is 206503137433. The next prime is 206503137559. The reversal of 206503137470 is 74731305602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042691 + ... + 1224830.

It is an arithmetic number, because the mean of its divisors is an integer number (13285411398).

Almost surely, 2^206503137470 is an apocalyptic number.

206503137470 is an abundant number, since it is smaller than the sum of its proper divisors (218630027266).

206503137470 is a wasteful number, since it uses less digits than its factorization.

206503137470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268836.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 206503137470 in words is "two hundred six billion, five hundred three million, one hundred thirty-seven thousand, four hundred seventy".