63331477020 has 192 divisors, whose sum is σ = 225299020800. Its totient is φ = 14468025600.

The previous prime is 63331476997. The next prime is 63331477087. The reversal of 63331477020 is 2077413336.

63331477020 is a `hidden beast` number, since 633 + 3 + 14 + 7 + 7 + 0 + 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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10047870 + ... + 10054170.

It is an arithmetic number, because the mean of its divisors is an integer number (1173432400).

Almost surely, 2^63331477020 is an apocalyptic number.

63331477020 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 63331477020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112649510400).

63331477020 is an abundant number, since it is smaller than the sum of its proper divisors (161967543780).

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

63331477020 is a wasteful number, since it uses less digits than its factorization.

63331477020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8985 (or 8977 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The spelling of 63331477020 in words is "sixty-three billion, three hundred thirty-one million, four hundred seventy-seven thousand, twenty".