16269521764 has 24 divisors (see below), whose sum is σ = 30881751768. Its totient is φ = 7469506560.

The previous prime is 16269521743. The next prime is 16269521767. The reversal of 16269521764 is 46712596261.

It can be written as a sum of positive squares in 4 ways, for example, as 2560000 + 16266961764 = 1600^2 + 127542^2 .

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 not an unprimeable number, because it can be changed into a prime (16269521767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2914989 + ... + 2920564.

It is an arithmetic number, because the mean of its divisors is an integer number (1286739657).

Almost surely, 2^16269521764 is an apocalyptic number.

It is an amenable number.

16269521764 is a deficient number, since it is larger than the sum of its proper divisors (14612230004).

16269521764 is a wasteful number, since it uses less digits than its factorization.

16269521764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835615 (or 5835613 counting only the distinct ones).

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

The spelling of 16269521764 in words is "sixteen billion, two hundred sixty-nine million, five hundred twenty-one thousand, seven hundred sixty-four".