1641001642 has 8 divisors (see below), whose sum is σ = 2813145696. Its totient is φ = 703286412.

The previous prime is 1641001591. The next prime is 1641001643. The reversal of 1641001642 is 2461001461.

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

It is not an unprimeable number, because it can be changed into a prime (1641001643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 58607188 + ... + 58607215.

It is an arithmetic number, because the mean of its divisors is an integer number (351643212).

Almost surely, 2^1641001642 is an apocalyptic number.

1641001642 is a deficient number, since it is larger than the sum of its proper divisors (1172144054).

1641001642 is a wasteful number, since it uses less digits than its factorization.

1641001642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117214412.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1641001642 is about 40509.2784680251. The cubic root of 1641001642 is about 1179.5137424818.

The spelling of 1641001642 in words is "one billion, six hundred forty-one million, one thousand, six hundred forty-two".