1563866016 has 48 divisors (see below), whose sum is σ = 4107184704. Its totient is φ = 521030144.

The previous prime is 1563865991. The next prime is 1563866027. The reversal of 1563866016 is 6106683651.

1563866016 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368740 + ... + 372956.

It is an arithmetic number, because the mean of its divisors is an integer number (85566348).

Almost surely, 2^1563866016 is an apocalyptic number.

1563866016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1563866016 is an abundant number, since it is smaller than the sum of its proper divisors (2543318688).

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

1563866016 is a wasteful number, since it uses less digits than its factorization.

1563866016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8093 (or 8085 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1563866016 is about 39545.7458647577. The cubic root of 1563866016 is about 1160.7352690851.

The spelling of 1563866016 in words is "one billion, five hundred sixty-three million, eight hundred sixty-six thousand, sixteen".