16774412020 has 24 divisors (see below), whose sum is σ = 35890914024. Its totient is φ = 6583165056.

The previous prime is 16774412009. The next prime is 16774412047. The reversal of 16774412020 is 2021447761.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6129950436 + 10644461584 = 78294^2 + 103172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7911399 + ... + 7913518.

It is an arithmetic number, because the mean of its divisors is an integer number (1495454751).

Almost surely, 2^16774412020 is an apocalyptic number.

16774412020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16774412020 is an abundant number, since it is smaller than the sum of its proper divisors (19116502004).

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

16774412020 is a wasteful number, since it uses less digits than its factorization.

16774412020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15824979 (or 15824977 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

Adding to 16774412020 its reverse (2021447761), we get a palindrome (18795859781).

The spelling of 16774412020 in words is "sixteen billion, seven hundred seventy-four million, four hundred twelve thousand, twenty".