16456117427 has 16 divisors (see below), whose sum is σ = 16709372064. Its totient is φ = 16205280000.

The previous prime is 16456117423. The next prime is 16456117429. The reversal of 16456117427 is 72471165461.

It is a cyclic number.

It is not a de Polignac number, because 16456117427 - 2² = 16456117423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16456117421) 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, 15509477 + ... + 15510537.

It is an arithmetic number, because the mean of its divisors is an integer number (1044335754).

Almost surely, 2^16456117427 is an apocalyptic number.

16456117427 is a deficient number, since it is larger than the sum of its proper divisors (253254637).

16456117427 is a wasteful number, since it uses less digits than its factorization.

16456117427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990.

The product of its digits is 282240, while the sum is 44.

The spelling of 16456117427 in words is "sixteen billion, four hundred fifty-six million, one hundred seventeen thousand, four hundred twenty-seven".