16253864017 has 4 divisors (see below), whose sum is σ = 16254900720. Its totient is φ = 16252827316.

The previous prime is 16253863993. The next prime is 16253864027. The reversal of 16253864017 is 71046835261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16253864017 - 2¹¹ = 16253861969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16253864027) 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, 494467 + ... + 526312.

It is an arithmetic number, because the mean of its divisors is an integer number (4063725180).

Almost surely, 2^16253864017 is an apocalyptic number.

It is an amenable number.

16253864017 is a deficient number, since it is larger than the sum of its proper divisors (1036703).

16253864017 is a wasteful number, since it uses less digits than its factorization.

16253864017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036702.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 16253864017 in words is "sixteen billion, two hundred fifty-three million, eight hundred sixty-four thousand, seventeen".