1063855238220 has 192 divisors, whose sum is σ = 3320561018880. Its totient is φ = 282771302400.

The previous prime is 1063855238219. The next prime is 1063855238269. The reversal of 1063855238220 is 228325583601.

1063855238220 is a `hidden beast` number, since 1 + 0 + 63 + 8 + 552 + 38 + 2 + 2 + 0 = 666.

It is a super-2 number, since 2×1063855238220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 468039004 + ... + 468041276.

It is an arithmetic number, because the mean of its divisors is an integer number (17294588640).

Almost surely, 2^{1063855238220} is an apocalyptic number.

1063855238220 is a gapful number since it is divisible by the number (10) 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 1063855238220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1660280509440).

1063855238220 is an abundant number, since it is smaller than the sum of its proper divisors (2256705780660).

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

1063855238220 is a wasteful number, since it uses less digits than its factorization.

1063855238220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733 (or 4725 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 1063855238220 in words is "one trillion, sixty-three billion, eight hundred fifty-five million, two hundred thirty-eight thousand, two hundred twenty".