20245171310 has 128 divisors (see below), whose sum is σ = 47572842240. Its totient is φ = 6019743744.

The previous prime is 20245171307. The next prime is 20245171321. The reversal of 20245171310 is 1317154202.

It is a super-2 number, since 2×20245171310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 20245171310.

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 63 ways as a sum of consecutive naturals, for example, 15608582 + ... + 15609878.

It is an arithmetic number, because the mean of its divisors is an integer number (371662830).

Almost surely, 2^20245171310 is an apocalyptic number.

20245171310 is an abundant number, since it is smaller than the sum of its proper divisors (27327670930).

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

20245171310 is a wasteful number, since it uses less digits than its factorization.

20245171310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350.

The product of its (nonzero) digits is 1680, while the sum is 26.

The spelling of 20245171310 in words is "twenty billion, two hundred forty-five million, one hundred seventy-one thousand, three hundred ten".