16263978052 has 24 divisors (see below), whose sum is σ = 32562141696. Its totient is φ = 6962950848.

The previous prime is 16263978037. The next prime is 16263978053. The reversal of 16263978052 is 25087936261.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16263977987 and 16263978005.

It is not an unprimeable number, because it can be changed into a prime (16263978053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278068 + ... + 331435.

It is an arithmetic number, because the mean of its divisors is an integer number (1356755904).

Almost surely, 2^16263978052 is an apocalyptic number.

It is an amenable number.

16263978052 is an abundant number, since it is smaller than the sum of its proper divisors (16298163644).

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

16263978052 is a wasteful number, since it uses less digits than its factorization.

16263978052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610467 (or 610465 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 16263978052 in words is "sixteen billion, two hundred sixty-three million, nine hundred seventy-eight thousand, fifty-two".