1641642145118 has 16 divisors (see below), whose sum is σ = 2463689329920. Its totient is φ = 820412477976.

The previous prime is 1641642145111. The next prime is 1641642145127. The reversal of 1641642145118 is 8115412461461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641642145111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35428121 + ... + 35474427.

It is an arithmetic number, because the mean of its divisors is an integer number (153980583120).

Almost surely, 2^{1641642145118} is an apocalyptic number.

1641642145118 is a deficient number, since it is larger than the sum of its proper divisors (822047184802).

1641642145118 is a wasteful number, since it uses less digits than its factorization.

1641642145118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54751.

The product of its digits is 184320, while the sum is 44.

The spelling of 1641642145118 in words is "one trillion, six hundred forty-one billion, six hundred forty-two million, one hundred forty-five thousand, one hundred eighteen".