2665571002 has 4 divisors (see below), whose sum is σ = 3998356506. Its totient is φ = 1332785500.

The previous prime is 2665570997. The next prime is 2665571003. The reversal of 2665571002 is 2001755662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2654207361 + 11363641 = 51519^2 + 3371^2 .

It is not an unprimeable number, because it can be changed into a prime (2665571003) 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 as a sum of consecutive naturals, namely, 666392749 + ... + 666392752.

Almost surely, 2^2665571002 is an apocalyptic number.

2665571002 is a deficient number, since it is larger than the sum of its proper divisors (1332785504).

2665571002 is a wasteful number, since it uses less digits than its factorization.

2665571002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332785503.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 2665571002 is about 51629.1681319775. The cubic root of 2665571002 is about 1386.5325998215.

The spelling of 2665571002 in words is "two billion, six hundred sixty-five million, five hundred seventy-one thousand, two".