20348055552 has 312 divisors, whose sum is σ = 61640879040. Its totient is φ = 5920194560.

The previous prime is 20348055527. The next prime is 20348055569. The reversal of 20348055552 is 25555084302.

It is a self number, because there is not a number n which added to its sum of digits gives 20348055552.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113676199 + ... + 113676377.

It is an arithmetic number, because the mean of its divisors is an integer number (197566920).

Almost surely, 2^20348055552 is an apocalyptic number.

20348055552 is a gapful number since it is divisible by the number (22) 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 20348055552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30820439520).

20348055552 is an abundant number, since it is smaller than the sum of its proper divisors (41292823488).

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

20348055552 is a wasteful number, since it uses less digits than its factorization.

20348055552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 20348055552 in words is "twenty billion, three hundred forty-eight million, fifty-five thousand, five hundred fifty-two".