16261323250 has 16 divisors (see below), whose sum is σ = 30441197592. Its totient is φ = 6504529200.

The previous prime is 16261323193. The next prime is 16261323263. The reversal of 16261323250 is 5232316261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3967614121 + 12293709129 = 62989^2 + 110877^2 .

It is a super-5 number, since 5×16261323250⁵ (a number of 52 digits) contains 55555 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32522397 + ... + 32522896.

Almost surely, 2^16261323250 is an apocalyptic number.

16261323250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16261323250 is a deficient number, since it is larger than the sum of its proper divisors (14179874342).

16261323250 is an equidigital number, since it uses as much as digits as its factorization.

16261323250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65045310 (or 65045300 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 16261323250 in words is "sixteen billion, two hundred sixty-one million, three hundred twenty-three thousand, two hundred fifty".