1671601652 has 24 divisors (see below), whose sum is σ = 3424747200. Its totient is φ = 698927040.

The previous prime is 1671601643. The next prime is 1671601681. The reversal of 1671601652 is 2561061761.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 726902 + ... + 729197.

It is an arithmetic number, because the mean of its divisors is an integer number (142697800).

Almost surely, 2^1671601652 is an apocalyptic number.

It is an amenable number.

1671601652 is an abundant number, since it is smaller than the sum of its proper divisors (1753145548).

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

1671601652 is a wasteful number, since it uses less digits than its factorization.

1671601652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456151 (or 1456149 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1671601652 is about 40885.2253509749. The cubic root of 1671601652 is about 1186.8001628140.

The spelling of 1671601652 in words is "one billion, six hundred seventy-one million, six hundred one thousand, six hundred fifty-two".