2161606010575 has 48 divisors (see below), whose sum is σ = 3059843371776. Its totient is φ = 1499464524800.

The previous prime is 2161606010573. The next prime is 2161606010617. The reversal of 2161606010575 is 5750106061612.

It is not a de Polignac number, because 2161606010575 - 2¹ = 2161606010573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161606010573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1748652 + ... + 2716798.

It is an arithmetic number, because the mean of its divisors is an integer number (63746736912).

Almost surely, 2^{2161606010575} is an apocalyptic number.

2161606010575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2161606010575 is a deficient number, since it is larger than the sum of its proper divisors (898237361201).

2161606010575 is a wasteful number, since it uses less digits than its factorization.

2161606010575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968544 (or 968539 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 2161606010575 in words is "two trillion, one hundred sixty-one billion, six hundred six million, ten thousand, five hundred seventy-five".