1601332645 has 8 divisors (see below), whose sum is σ = 2096290080. Its totient is φ = 1164605520.

The previous prime is 1601332639. The next prime is 1601332669. The reversal of 1601332645 is 5462331061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1601332645 - 2³ = 1601332637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14557515 + ... + 14557624.

It is an arithmetic number, because the mean of its divisors is an integer number (262036260).

Almost surely, 2^1601332645 is an apocalyptic number.

It is an amenable number.

1601332645 is a deficient number, since it is larger than the sum of its proper divisors (494957435).

1601332645 is a wasteful number, since it uses less digits than its factorization.

1601332645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29115155.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1601332645 is about 40016.6545953057. The cubic root of 1601332645 is about 1169.9317283074.

The spelling of 1601332645 in words is "one billion, six hundred one million, three hundred thirty-two thousand, six hundred forty-five".