1063183517820 has 72 divisors (see below), whose sum is σ = 3365206973856. Its totient is φ = 271188838272.

The previous prime is 1063183517819. The next prime is 1063183517863. The reversal of 1063183517820 is 287153813601.

It is a happy number.

1063183517820 is a `hidden beast` number, since 1 + 0 + 6 + 31 + 83 + 517 + 8 + 20 = 666.

It is a super-2 number, since 2×1063183517820² (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 a congruent number.

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, 128399667 + ... + 128407946.

It is an arithmetic number, because the mean of its divisors is an integer number (46738985748).

Almost surely, 2^{1063183517820} is an apocalyptic number.

1063183517820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1063183517820 is an abundant number, since it is smaller than the sum of its proper divisors (2302023456036).

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

1063183517820 is a wasteful number, since it uses less digits than its factorization.

1063183517820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256807651 (or 256807646 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 1063183517820 in words is "one trillion, sixty-three billion, one hundred eighty-three million, five hundred seventeen thousand, eight hundred twenty".