20003030166 has 16 divisors (see below), whose sum is σ = 45721211904. Its totient is φ = 5715151464.

The previous prime is 20003030143. The next prime is 20003030167. The reversal of 20003030166 is 66103030002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003030167) 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, 238131270 + ... + 238131353.

It is an arithmetic number, because the mean of its divisors is an integer number (2857575744).

Almost surely, 2^20003030166 is an apocalyptic number.

20003030166 is an abundant number, since it is smaller than the sum of its proper divisors (25718181738).

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

20003030166 is a wasteful number, since it uses less digits than its factorization.

20003030166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476262635.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20003030166 its reverse (66103030002), we get a palindrome (86106060168).

The spelling of 20003030166 in words is "twenty billion, three million, thirty thousand, one hundred sixty-six".