1601332245 has 24 divisors (see below), whose sum is σ = 2802598656. Its totient is φ = 845749728.

The previous prime is 1601332241. The next prime is 1601332247. The reversal of 1601332245 is 5422331061.

1601332245 is a `hidden beast` number, since 1 + 601 + 3 + 32 + 24 + 5 = 666.

It is not a de Polignac number, because 1601332245 - 2² = 1601332241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601332241) 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, 168109 + ... + 177378.

It is an arithmetic number, because the mean of its divisors is an integer number (116774944).

Almost surely, 2^1601332245 is an apocalyptic number.

1601332245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1601332245 is a deficient number, since it is larger than the sum of its proper divisors (1201266411).

1601332245 is a wasteful number, since it uses less digits than its factorization.

1601332245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345601 (or 345598 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1601332245 is about 40016.6495973863. The cubic root of 1601332245 is about 1169.9316308942.

The spelling of 1601332245 in words is "one billion, six hundred one million, three hundred thirty-two thousand, two hundred forty-five".