20016126 has 32 divisors (see below), whose sum is σ = 47903520. Its totient is φ = 6158592.

The previous prime is 20016121. The next prime is 20016131. The reversal of 20016126 is 62161002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20016121) and next prime (20016131).

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

It is a junction number, because it is equal to n+sod(n) for n = 20016099 and 20016108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13555 + ... + 14958.

It is an arithmetic number, because the mean of its divisors is an integer number (1496985).

Almost surely, 2^20016126 is an apocalyptic number.

20016126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20016126 is an abundant number, since it is smaller than the sum of its proper divisors (27887394).

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

20016126 is a wasteful number, since it uses less digits than its factorization.

20016126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28537 (or 28531 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20016126 is about 4473.9385333283. The cubic root of 20016126 is about 271.5146965580.

Adding to 20016126 its reverse (62161002), we get a palindrome (82177128).

The spelling of 20016126 in words is "twenty million, sixteen thousand, one hundred twenty-six".