16012452571 has 4 divisors (see below), whose sum is σ = 16237980144. Its totient is φ = 15786925000.

The previous prime is 16012452563. The next prime is 16012452581. The reversal of 16012452571 is 17525421061.

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

It is a cyclic number.

It is not a de Polignac number, because 16012452571 - 2³ = 16012452563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16012452581) 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, 112763680 + ... + 112763821.

It is an arithmetic number, because the mean of its divisors is an integer number (4059495036).

Almost surely, 2^16012452571 is an apocalyptic number.

16012452571 is a deficient number, since it is larger than the sum of its proper divisors (225527573).

16012452571 is an equidigital number, since it uses as much as digits as its factorization.

16012452571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225527572.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 16012452571 in words is "sixteen billion, twelve million, four hundred fifty-two thousand, five hundred seventy-one".