20443356120 has 128 divisors (see below), whose sum is σ = 70841226240. Its totient is φ = 4664432640.

The previous prime is 20443356119. The next prime is 20443356151. The reversal of 20443356120 is 2165334402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433072 + ... + 477951.

It is an arithmetic number, because the mean of its divisors is an integer number (553447080).

Almost surely, 2^20443356120 is an apocalyptic number.

20443356120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20443356120 is an abundant number, since it is smaller than the sum of its proper divisors (50397870120).

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

20443356120 is a wasteful number, since it uses less digits than its factorization.

20443356120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911065 (or 911061 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 20443356120 in words is "twenty billion, four hundred forty-three million, three hundred fifty-six thousand, one hundred twenty".