1660112271 has 48 divisors (see below), whose sum is σ = 2576403648. Its totient is φ = 1026432000.

The previous prime is 1660112231. The next prime is 1660112291. The reversal of 1660112271 is 1722110661.

It is a happy number.

It is not a de Polignac number, because 1660112271 - 2¹¹ = 1660110223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660112231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4181445 + ... + 4181841.

It is an arithmetic number, because the mean of its divisors is an integer number (53675076).

Almost surely, 2^1660112271 is an apocalyptic number.

1660112271 is a deficient number, since it is larger than the sum of its proper divisors (916291377).

1660112271 is a wasteful number, since it uses less digits than its factorization.

1660112271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 749 counting only the distinct ones).

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

The square root of 1660112271 is about 40744.4753432904. The cubic root of 1660112271 is about 1184.0748405696.

The spelling of 1660112271 in words is "one billion, six hundred sixty million, one hundred twelve thousand, two hundred seventy-one".