1563276960 has 144 divisors (see below), whose sum is σ = 6096819456. Its totient is φ = 357318144.

The previous prime is 1563276947. The next prime is 1563276961. The reversal of 1563276960 is 696723651.

1563276960 is a `hidden beast` number, since 1 + 5 + 632 + 7 + 6 + 9 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (1563276961) 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, 67464 + ... + 87623.

It is an arithmetic number, because the mean of its divisors is an integer number (42339024).

Almost surely, 2^1563276960 is an apocalyptic number.

1563276960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1563276960 is an abundant number, since it is smaller than the sum of its proper divisors (4533542496).

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

1563276960 is a wasteful number, since it uses less digits than its factorization.

1563276960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155115 (or 155104 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 1563276960 is about 39538.2973836760. The cubic root of 1563276960 is about 1160.5895140710.

The spelling of 1563276960 in words is "one billion, five hundred sixty-three million, two hundred seventy-six thousand, nine hundred sixty".