2175406064 has 40 divisors (see below), whose sum is σ = 4777975440. Its totient is φ = 951187968.

The previous prime is 2175406061. The next prime is 2175406081. The reversal of 2175406064 is 4606045712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175406061) 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, 271277 + ... + 279180.

It is an arithmetic number, because the mean of its divisors is an integer number (119449386).

Almost surely, 2^2175406064 is an apocalyptic number.

It is an amenable number.

2175406064 is an abundant number, since it is smaller than the sum of its proper divisors (2602569376).

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

2175406064 is a wasteful number, since it uses less digits than its factorization.

2175406064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550497 (or 550491 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2175406064 is about 46641.2485253129. The cubic root of 2175406064 is about 1295.7268101456.

The spelling of 2175406064 in words is "two billion, one hundred seventy-five million, four hundred six thousand, sixty-four".