16263565460 has 12 divisors (see below), whose sum is σ = 34153487508. Its totient is φ = 6505426176.

The previous prime is 16263565459. The next prime is 16263565481. The reversal of 16263565460 is 6456536261.

It can be written as a sum of positive squares in 2 ways, for example, as 3328597636 + 12934967824 = 57694^2 + 113732^2 .

It is a super-2 number, since 2×16263565460² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406589117 + ... + 406589156.

It is an arithmetic number, because the mean of its divisors is an integer number (2846123959).

Almost surely, 2^16263565460 is an apocalyptic number.

16263565460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16263565460 is an abundant number, since it is smaller than the sum of its proper divisors (17889922048).

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

16263565460 is a wasteful number, since it uses less digits than its factorization.

16263565460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813178282 (or 813178280 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 16263565460 in words is "sixteen billion, two hundred sixty-three million, five hundred sixty-five thousand, four hundred sixty".