1201660002 has 32 divisors (see below), whose sum is σ = 2671488000. Its totient is φ = 400383504.

The previous prime is 1201659971. The next prime is 1201660007. The reversal of 1201660002 is 2000661021.

It is a happy number.

1201660002 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 660 + 0 + 0 + 2 = 666.

1201660002 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 (18).

It is not an unprimeable number, because it can be changed into a prime (1201660007) 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, 247999 + ... + 252797.

It is an arithmetic number, because the mean of its divisors is an integer number (83484000).

Almost surely, 2^1201660002 is an apocalyptic number.

1201660002 is an abundant number, since it is smaller than the sum of its proper divisors (1469827998).

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

1201660002 is a wasteful number, since it uses less digits than its factorization.

1201660002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9447 (or 9441 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1201660002 is about 34664.9679359436. The cubic root of 1201660002 is about 1063.1483476733.

The spelling of 1201660002 in words is "one billion, two hundred one million, six hundred sixty thousand, two".