2016661485 has 16 divisors (see below), whose sum is σ = 3228025536. Its totient is φ = 1075097088.

The previous prime is 2016661483. The next prime is 2016661513. The reversal of 2016661485 is 5841666102.

It is a happy number.

It is not a de Polignac number, because 2016661485 - 2¹ = 2016661483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2016661483) 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, 9757 + ... + 64253.

It is an arithmetic number, because the mean of its divisors is an integer number (201751596).

Almost surely, 2^2016661485 is an apocalyptic number.

It is an amenable number.

2016661485 is a deficient number, since it is larger than the sum of its proper divisors (1211364051).

2016661485 is a wasteful number, since it uses less digits than its factorization.

2016661485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56972.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 2016661485 is about 44907.2542580817. The cubic root of 2016661485 is about 1263.4100716554.

The spelling of 2016661485 in words is "two billion, sixteen million, six hundred sixty-one thousand, four hundred eighty-five".