4065656148 has 36 divisors (see below), whose sum is σ = 10881610740. Its totient is φ = 1275499776.

The previous prime is 4065656137. The next prime is 4065656183. The reversal of 4065656148 is 8416565604.

4065656148 is a `hidden beast` number, since 40 + 6 + 5 + 6 + 561 + 48 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3151924164 + 913731984 = 56142^2 + 30228^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3321003 + ... + 3322226.

It is an arithmetic number, because the mean of its divisors is an integer number (302266965).

Almost surely, 2^4065656148 is an apocalyptic number.

It is an amenable number.

4065656148 is an abundant number, since it is smaller than the sum of its proper divisors (6815954592).

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

4065656148 is a wasteful number, since it uses less digits than its factorization.

4065656148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643256 (or 6643251 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 4065656148 is about 63762.4979749068. The cubic root of 4065656148 is about 1596.0391806388.

The spelling of 4065656148 in words is "four billion, sixty-five million, six hundred fifty-six thousand, one hundred forty-eight".