1601100657 has 24 divisors (see below), whose sum is σ = 2548529984. Its totient is φ = 962375904.

The previous prime is 1601100653. The next prime is 1601100659. The reversal of 1601100657 is 7560011061.

1601100657 is a `hidden beast` number, since 1 + 6 + 0 + 1 + 1 + 0 + 0 + 657 = 666.

It is not a de Polignac number, because 1601100657 - 2² = 1601100653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1601100657.

It is not an unprimeable number, because it can be changed into a prime (1601100653) 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, 154093 + ... + 164154.

Almost surely, 2^1601100657 is an apocalyptic number.

It is an amenable number.

1601100657 is a deficient number, since it is larger than the sum of its proper divisors (947429327).

1601100657 is a wasteful number, since it uses less digits than its factorization.

1601100657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318309 (or 318306 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1601100657 is about 40013.7558472083. The cubic root of 1601100657 is about 1169.8752288599.

The spelling of 1601100657 in words is "one billion, six hundred one million, one hundred thousand, six hundred fifty-seven".