20351160 has 48 divisors (see below), whose sum is σ = 66142440. Its totient is φ = 5426880.

The previous prime is 20351153. The next prime is 20351171. The reversal of 20351160 is 6115302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27906 + ... + 28625.

Almost surely, 2^20351160 is an apocalyptic number.

20351160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20351160 is an abundant number, since it is smaller than the sum of its proper divisors (45791280).

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

20351160 is a wasteful number, since it uses less digits than its factorization.

20351160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56548 (or 56541 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 20351160 is about 4511.2259974424. The cubic root of 20351160 is about 273.0212115709.

Adding to 20351160 its reverse (6115302), we get a palindrome (26466462).

The spelling of 20351160 in words is "twenty million, three hundred fifty-one thousand, one hundred sixty".