20545713210 has 64 divisors (see below), whose sum is σ = 54062899200. Its totient is φ = 4955734080.

The previous prime is 20545713197. The next prime is 20545713247. The reversal of 20545713210 is 1231754502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 90762 + ... + 222101.

It is an arithmetic number, because the mean of its divisors is an integer number (844732800).

Almost surely, 2^20545713210 is an apocalyptic number.

20545713210 is an abundant number, since it is smaller than the sum of its proper divisors (33517185990).

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

20545713210 is a wasteful number, since it uses less digits than its factorization.

20545713210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313083.

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 20545713210 in words is "twenty billion, five hundred forty-five million, seven hundred thirteen thousand, two hundred ten".