66160540 has 12 divisors (see below), whose sum is σ = 138937176. Its totient is φ = 26464208.

The previous prime is 66160487. The next prime is 66160573. The reversal of 66160540 is 4506166.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 66160499 and 66160508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1653994 + ... + 1654033.

It is an arithmetic number, because the mean of its divisors is an integer number (11578098).

Almost surely, 2^66160540 is an apocalyptic number.

It is an amenable number.

66160540 is an abundant number, since it is smaller than the sum of its proper divisors (72776636).

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

66160540 is a wasteful number, since it uses less digits than its factorization.

66160540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308036 (or 3308034 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 66160540 is about 8133.9129574885. The cubic root of 66160540 is about 404.4514037521.

The spelling of 66160540 in words is "sixty-six million, one hundred sixty thousand, five hundred forty".