63302345820 has 144 divisors (see below), whose sum is σ = 219938846400. Its totient is φ = 14436753408.

The previous prime is 63302345801. The next prime is 63302345833. The reversal of 63302345820 is 2854320336.

It is a happy number.

63302345820 is a `hidden beast` number, since 6 + 3 + 302 + 345 + 8 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 509794 + ... + 621686.

It is an arithmetic number, because the mean of its divisors is an integer number (1527353100).

Almost surely, 2^63302345820 is an apocalyptic number.

63302345820 is a gapful number since it is divisible by the number (60) 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 63302345820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109969423200).

63302345820 is an abundant number, since it is smaller than the sum of its proper divisors (156636500580).

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

63302345820 is a wasteful number, since it uses less digits than its factorization.

63302345820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112364 (or 112359 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 63302345820 in words is "sixty-three billion, three hundred two million, three hundred forty-five thousand, eight hundred twenty".