20626837120 has 128 divisors (see below), whose sum is σ = 52288545600. Its totient is φ = 7753973760.

The previous prime is 20626837117. The next prime is 20626837151. The reversal of 20626837120 is 2173862602.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 20626837120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12739671 + ... + 12741289.

Almost surely, 2^20626837120 is an apocalyptic number.

20626837120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20626837120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26144272800).

20626837120 is an abundant number, since it is smaller than the sum of its proper divisors (31661708480).

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

20626837120 is a wasteful number, since it uses less digits than its factorization.

20626837120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 20626837120 in words is "twenty billion, six hundred twenty-six million, eight hundred thirty-seven thousand, one hundred twenty".