20502410197 has 8 divisors (see below), whose sum is σ = 21395283840. Its totient is φ = 19609658640.

The previous prime is 20502410179. The next prime is 20502410207. The reversal of 20502410197 is 79101420502.

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

It is a cyclic number.

It is not a de Polignac number, because 20502410197 - 2¹⁵ = 20502377429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20502410147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538872 + ... + 575662.

It is an arithmetic number, because the mean of its divisors is an integer number (2674410480).

Almost surely, 2^20502410197 is an apocalyptic number.

It is an amenable number.

20502410197 is a deficient number, since it is larger than the sum of its proper divisors (892873643).

20502410197 is a wasteful number, since it uses less digits than its factorization.

20502410197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61043.

The product of its (nonzero) digits is 5040, while the sum is 31.

Adding to 20502410197 its reverse (79101420502), we get a palindrome (99603830699).

The spelling of 20502410197 in words is "twenty billion, five hundred two million, four hundred ten thousand, one hundred ninety-seven".