16263632264 has 48 divisors (see below), whose sum is σ = 33864287100. Its totient is φ = 7316305920.

The previous prime is 16263632261. The next prime is 16263632279. The reversal of 16263632264 is 46223636261.

It can be written as a sum of positive squares in 2 ways, for example, as 14402400100 + 1861232164 = 120010^2 + 43142^2 .

It is not an unprimeable number, because it can be changed into a prime (16263632261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7292 + ... + 180500.

Almost surely, 2^16263632264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16263632264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16932143550).

16263632264 is an abundant number, since it is smaller than the sum of its proper divisors (17600654836).

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

16263632264 is a wasteful number, since it uses less digits than its factorization.

16263632264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173334 (or 173319 counting only the distinct ones).

The product of its digits is 373248, while the sum is 41.

The spelling of 16263632264 in words is "sixteen billion, two hundred sixty-three million, six hundred thirty-two thousand, two hundred sixty-four".