2665533946 has 32 divisors (see below), whose sum is σ = 4247147520. Its totient is φ = 1252454400.

The previous prime is 2665533881. The next prime is 2665533973. The reversal of 2665533946 is 6493355662.

It is a self number, because there is not a number n which added to its sum of digits gives 2665533946.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1763331 + ... + 1764841.

It is an arithmetic number, because the mean of its divisors is an integer number (132723360).

Almost surely, 2^2665533946 is an apocalyptic number.

2665533946 is a deficient number, since it is larger than the sum of its proper divisors (1581613574).

2665533946 is a wasteful number, since it uses less digits than its factorization.

2665533946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350.

The product of its digits is 3499200, while the sum is 49.

The square root of 2665533946 is about 51628.8092638209. The cubic root of 2665533946 is about 1386.5261747328.

The spelling of 2665533946 in words is "two billion, six hundred sixty-five million, five hundred thirty-three thousand, nine hundred forty-six".