1660662036 has 72 divisors (see below), whose sum is σ = 4630953600. Its totient is φ = 497566080.

The previous prime is 1660662011. The next prime is 1660662037. The reversal of 1660662036 is 6302660661.

1660662036 is a `hidden beast` number, since 16 + 606 + 6 + 2 + 0 + 36 = 666.

1660662036 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660662037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11685 + ... + 58803.

It is an arithmetic number, because the mean of its divisors is an integer number (64318800).

Almost surely, 2^1660662036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1660662036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315476800).

1660662036 is an abundant number, since it is smaller than the sum of its proper divisors (2970291564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1660662036 is a wasteful number, since it uses less digits than its factorization.

1660662036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47229 (or 47224 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 1660662036 is about 40751.2212823125. The cubic root of 1660662036 is about 1184.2055327465.

The spelling of 1660662036 in words is "one billion, six hundred sixty million, six hundred sixty-two thousand, thirty-six".