20002274164 has 24 divisors (see below), whose sum is σ = 35964290880. Its totient is φ = 9730258176.

The previous prime is 20002274161. The next prime is 20002274191. The reversal of 20002274164 is 46147220002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002274161) 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, 413992 + ... + 459775.

It is an arithmetic number, because the mean of its divisors is an integer number (1498512120).

Almost surely, 2^20002274164 is an apocalyptic number.

It is an amenable number.

20002274164 is a deficient number, since it is larger than the sum of its proper divisors (15962016716).

20002274164 is a wasteful number, since it uses less digits than its factorization.

20002274164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873927 (or 873925 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 20002274164 its reverse (46147220002), we get a palindrome (66149494166).

The spelling of 20002274164 in words is "twenty billion, two million, two hundred seventy-four thousand, one hundred sixty-four".