53785920216 has 128 divisors (see below), whose sum is σ = 159306624000. Its totient is φ = 14806374912.

The previous prime is 53785920193. The next prime is 53785920239. The reversal of 53785920216 is 61202958735.

It is an interprime number because it is at equal distance from previous prime (53785920193) and next prime (53785920239).

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, 2361330 + ... + 2383998.

It is an arithmetic number, because the mean of its divisors is an integer number (1244583000).

Almost surely, 2^53785920216 is an apocalyptic number.

53785920216 is a gapful number since it is divisible by the number (56) 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 53785920216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79653312000).

53785920216 is an abundant number, since it is smaller than the sum of its proper divisors (105520703784).

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

53785920216 is a wasteful number, since it uses less digits than its factorization.

53785920216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23201 (or 23197 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 53785920216 in words is "fifty-three billion, seven hundred eighty-five million, nine hundred twenty thousand, two hundred sixteen".