20016099 has 8 divisors (see below), whose sum is σ = 29653520. Its totient is φ = 13344048.

The previous prime is 20016067. The next prime is 20016103. The reversal of 20016099 is 99061002.

It is a happy number.

It is not a de Polignac number, because 20016099 - 2⁵ = 20016067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 741337 = 20016099 / (2 + 0 + 0 + 1 + 6 + 0 + 9 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20016019) 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, 370642 + ... + 370695.

It is an arithmetic number, because the mean of its divisors is an integer number (3706690).

Almost surely, 2^20016099 is an apocalyptic number.

20016099 is a deficient number, since it is larger than the sum of its proper divisors (9637421).

20016099 is an equidigital number, since it uses as much as digits as its factorization.

20016099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741346 (or 741340 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 20016099 is about 4473.9355158518. The cubic root of 20016099 is about 271.5145744748.

It can be divided in two parts, 2001 and 6099, that added together give a square (8100 = 90²).

The spelling of 20016099 in words is "twenty million, sixteen thousand, ninety-nine".