16085232457 has 4 divisors (see below), whose sum is σ = 18383122816. Its totient is φ = 13787342100.

The previous prime is 16085232451. The next prime is 16085232479. The reversal of 16085232457 is 75423258061.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75423258061 = 2801 ⋅26927261.

It is a de Polignac number, because none of the positive numbers 2^k-16085232457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16085232451) 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, 1148945169 + ... + 1148945182.

It is an arithmetic number, because the mean of its divisors is an integer number (4595780704).

Almost surely, 2^16085232457 is an apocalyptic number.

It is an amenable number.

16085232457 is a deficient number, since it is larger than the sum of its proper divisors (2297890359).

16085232457 is an equidigital number, since it uses as much as digits as its factorization.

16085232457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297890358.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 16085232457 in words is "sixteen billion, eighty-five million, two hundred thirty-two thousand, four hundred fifty-seven".