2066175840 has 48 divisors (see below), whose sum is σ = 6508455408. Its totient is φ = 550980096.

The previous prime is 2066175817. The next prime is 2066175841. The reversal of 2066175840 is 485716602.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066175841) 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 7 ways as a sum of consecutive naturals, for example, 2151787 + ... + 2152746.

It is an arithmetic number, because the mean of its divisors is an integer number (135592821).

Almost surely, 2^2066175840 is an apocalyptic number.

2066175840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066175840 is an abundant number, since it is smaller than the sum of its proper divisors (4442279568).

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

2066175840 is a wasteful number, since it uses less digits than its factorization.

2066175840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304551 (or 4304543 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 2066175840 is about 45455.2069624592. The cubic root of 2066175840 is about 1273.6665983183. Note that the first 3 decimals are identical.

It can be divided in two parts, 2066 and 175840, that added together give a triangular number (177906 = T₅₉₆).

The spelling of 2066175840 in words is "two billion, sixty-six million, one hundred seventy-five thousand, eight hundred forty".