65001601100 has 36 divisors (see below), whose sum is σ = 148477345800. Its totient is φ = 24632184960.

The previous prime is 65001601099. The next prime is 65001601163. The reversal of 65001601100 is 110610056.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17103785 + ... + 17107584.

Almost surely, 2^65001601100 is an apocalyptic number.

It is an amenable number.

65001601100 is an abundant number, since it is smaller than the sum of its proper divisors (83475744700).

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

65001601100 is a wasteful number, since it uses less digits than its factorization.

65001601100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34211402 (or 34211395 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The spelling of 65001601100 in words is "sixty-five billion, one million, six hundred one thousand, one hundred".