1641016396885 has 16 divisors (see below), whose sum is σ = 2068628803200. Its totient is φ = 1247306526400.

The previous prime is 1641016396871. The next prime is 1641016396919. The reversal of 1641016396885 is 5886936101461.

It is not a de Polignac number, because 1641016396885 - 2⁵ = 1641016396853 is a prime.

It is a super-3 number, since 3×1641016396885³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47867791 + ... + 47902060.

It is an arithmetic number, because the mean of its divisors is an integer number (129289300200).

Almost surely, 2^{1641016396885} is an apocalyptic number.

It is an amenable number.

1641016396885 is a deficient number, since it is larger than the sum of its proper divisors (427612406315).

1641016396885 is a wasteful number, since it uses less digits than its factorization.

1641016396885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95770028.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 1641016396885 in words is "one trillion, six hundred forty-one billion, sixteen million, three hundred ninety-six thousand, eight hundred eighty-five".