1641158318742 has 32 divisors (see below), whose sum is σ = 3464333157120. Its totient is φ = 516871069920.

The previous prime is 1641158318731. The next prime is 1641158318759. The reversal of 1641158318742 is 2478138511461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19255234 + ... + 19340277.

It is an arithmetic number, because the mean of its divisors is an integer number (108260411160).

Almost surely, 2^{1641158318742} is an apocalyptic number.

1641158318742 is an abundant number, since it is smaller than the sum of its proper divisors (1823174838378).

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

1641158318742 is a wasteful number, since it uses less digits than its factorization.

1641158318742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38595908.

The product of its digits is 1290240, while the sum is 51.

The spelling of 1641158318742 in words is "one trillion, six hundred forty-one billion, one hundred fifty-eight million, three hundred eighteen thousand, seven hundred forty-two".