2016660531 has 8 divisors (see below), whose sum is σ = 2690768080. Its totient is φ = 1343496672.

The previous prime is 2016660521. The next prime is 2016660629. The reversal of 2016660531 is 1350666102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2016660531 - 2¹⁸ = 2016398387 is a prime.

It is a super-2 number, since 2×2016660531² = 8133839394586403922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2016660521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230920 + ... + 239493.

It is an arithmetic number, because the mean of its divisors is an integer number (336346010).

Almost surely, 2^2016660531 is an apocalyptic number.

2016660531 is a deficient number, since it is larger than the sum of its proper divisors (674107549).

2016660531 is a wasteful number, since it uses less digits than its factorization.

2016660531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471845.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 2016660531 is about 44907.2436361886. The cubic root of 2016660531 is about 1263.4098724329.

The spelling of 2016660531 in words is "two billion, sixteen million, six hundred sixty thousand, five hundred thirty-one".