16254693241 has 4 divisors (see below), whose sum is σ = 16521163684. Its totient is φ = 15988222800.

The previous prime is 16254693209. The next prime is 16254693277. The reversal of 16254693241 is 14239645261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3672360000 + 12582333241 = 60600^2 + 112171^2 .

It is a cyclic number.

It is not a de Polignac number, because 16254693241 - 2⁵ = 16254693209 is a prime.

It is a super-2 number, since 2×16254693241² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16254693041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133235130 + ... + 133235251.

It is an arithmetic number, because the mean of its divisors is an integer number (4130290921).

Almost surely, 2^16254693241 is an apocalyptic number.

It is an amenable number.

16254693241 is a deficient number, since it is larger than the sum of its proper divisors (266470443).

16254693241 is an equidigital number, since it uses as much as digits as its factorization.

16254693241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266470442.

The product of its digits is 311040, while the sum is 43.

The spelling of 16254693241 in words is "sixteen billion, two hundred fifty-four million, six hundred ninety-three thousand, two hundred forty-one".