20502160 has 80 divisors (see below), whose sum is σ = 56282112. Its totient is φ = 6796800.

The previous prime is 20502151. The next prime is 20502169. The reversal of 20502160 is 6120502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20502151) and next prime (20502169).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20502169) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16770 + ... + 17950.

Almost surely, 2^20502160 is an apocalyptic number.

20502160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20502160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28141056).

20502160 is an abundant number, since it is smaller than the sum of its proper divisors (35779952).

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

20502160 is a wasteful number, since it uses less digits than its factorization.

20502160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20502160 is about 4527.9310948821. The cubic root of 20502160 is about 273.6947957600.

Adding to 20502160 its reverse (6120502), we get a palindrome (26622662).

The spelling of 20502160 in words is "twenty million, five hundred two thousand, one hundred sixty".