16297256890 has 16 divisors (see below), whose sum is σ = 31060654632. Its totient is φ = 6135437824.

The previous prime is 16297256867. The next prime is 16297256893. The reversal of 16297256890 is 9865279261.

It can be written as a sum of positive squares in 4 ways, for example, as 16145005969 + 152250921 = 127063^2 + 12339^2 .

It is not an unprimeable number, because it can be changed into a prime (16297256893) 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, 47932939 + ... + 47933278.

Almost surely, 2^16297256890 is an apocalyptic number.

16297256890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16297256890 is a deficient number, since it is larger than the sum of its proper divisors (14763397742).

16297256890 is a wasteful number, since it uses less digits than its factorization.

16297256890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95866241.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 16297256890 in words is "sixteen billion, two hundred ninety-seven million, two hundred fifty-six thousand, eight hundred ninety".