1963563946560 has 168 divisors, whose sum is σ = 6805399176576. Its totient is φ = 519619875840.

The previous prime is 1963563946541. The next prime is 1963563946567. The reversal of 1963563946560 is 656493653691.

It is a happy number.

1963563946560 is a `hidden beast` number, since 1 + 9 + 6 + 3 + 5 + 63 + 9 + 4 + 6 + 560 = 666.

It is not an unprimeable number, because it can be changed into a prime (1963563946567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2224984 + ... + 2979543.

It is an arithmetic number, because the mean of its divisors is an integer number (40508328432).

Almost surely, 2^{1963563946560} is an apocalyptic number.

1963563946560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1963563946560 is an abundant number, since it is smaller than the sum of its proper divisors (4841835230016).

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

1963563946560 is a wasteful number, since it uses less digits than its factorization.

1963563946560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204681 (or 5204668 counting only the distinct ones).

The product of its (nonzero) digits is 94478400, while the sum is 63.

The spelling of 1963563946560 in words is "one trillion, nine hundred sixty-three billion, five hundred sixty-three million, nine hundred forty-six thousand, five hundred sixty".