1263116562 has 32 divisors (see below), whose sum is σ = 2570400000. Its totient is φ = 413709648.

The previous prime is 1263116551. The next prime is 1263116563. The reversal of 1263116562 is 2656113621.

It is not an unprimeable number, because it can be changed into a prime (1263116563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164689 + ... + 172187.

It is an arithmetic number, because the mean of its divisors is an integer number (80325000).

Almost surely, 2^1263116562 is an apocalyptic number.

1263116562 is an abundant number, since it is smaller than the sum of its proper divisors (1307283438).

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

1263116562 is a wasteful number, since it uses less digits than its factorization.

1263116562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7990.

The product of its digits is 12960, while the sum is 33.

The square root of 1263116562 is about 35540.3511800320. The cubic root of 1263116562 is about 1080.9720791845.

The spelling of 1263116562 in words is "one billion, two hundred sixty-three million, one hundred sixteen thousand, five hundred sixty-two".