16612001271 has 6 divisors (see below), whose sum is σ = 23995112960. Its totient is φ = 11074667508.

The previous prime is 16612001261. The next prime is 16612001291. The reversal of 16612001271 is 17210021661.

It is a happy number.

It is not a de Polignac number, because 16612001271 - 2⁷ = 16612001143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16612001251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 922888951 + ... + 922888968.

Almost surely, 2^16612001271 is an apocalyptic number.

16612001271 is a deficient number, since it is larger than the sum of its proper divisors (7383111689).

16612001271 is a wasteful number, since it uses less digits than its factorization.

16612001271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845777925 (or 1845777922 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 16612001271 in words is "sixteen billion, six hundred twelve million, one thousand, two hundred seventy-one".