20460170433 has 4 divisors (see below), whose sum is σ = 27280227248. Its totient is φ = 13640113620.

The previous prime is 20460170399. The next prime is 20460170447. The reversal of 20460170433 is 33407106402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-20460170433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20460170433.

It is not an unprimeable number, because it can be changed into a prime (20460170453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3410028403 + ... + 3410028408.

It is an arithmetic number, because the mean of its divisors is an integer number (6820056812).

Almost surely, 2^20460170433 is an apocalyptic number.

It is an amenable number.

20460170433 is a deficient number, since it is larger than the sum of its proper divisors (6820056815).

20460170433 is an equidigital number, since it uses as much as digits as its factorization.

20460170433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820056814.

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 20460170433 its reverse (33407106402), we get a palindrome (53867276835).

The spelling of 20460170433 in words is "twenty billion, four hundred sixty million, one hundred seventy thousand, four hundred thirty-three".