16456284257 has 16 divisors (see below), whose sum is σ = 19969949952. Its totient is φ = 13238016000.

The previous prime is 16456284241. The next prime is 16456284263. The reversal of 16456284257 is 75248265461.

It is a cyclic number.

It is not a de Polignac number, because 16456284257 - 2⁴ = 16456284241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16456284277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153869 + ... + 237882.

It is an arithmetic number, because the mean of its divisors is an integer number (1248121872).

Almost surely, 2^16456284257 is an apocalyptic number.

16456284257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16456284257 is a deficient number, since it is larger than the sum of its proper divisors (3513665695).

16456284257 is a wasteful number, since it uses less digits than its factorization.

16456284257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392128.

The product of its digits is 3225600, while the sum is 50.

The spelling of 16456284257 in words is "sixteen billion, four hundred fifty-six million, two hundred eighty-four thousand, two hundred fifty-seven".