6665145502 has 8 divisors (see below), whose sum is σ = 9999010800. Its totient is φ = 3332141904.

The previous prime is 6665145497. The next prime is 6665145503. The reversal of 6665145502 is 2055415666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665145503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195727 + ... + 227242.

It is an arithmetic number, because the mean of its divisors is an integer number (1249876350).

Almost surely, 2^6665145502 is an apocalyptic number.

6665145502 is a deficient number, since it is larger than the sum of its proper divisors (3333865298).

6665145502 is a wasteful number, since it uses less digits than its factorization.

6665145502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430850.

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 6665145502 is about 81640.3423682189. The cubic root of 6665145502 is about 1881.9288997974.

The spelling of 6665145502 in words is "six billion, six hundred sixty-five million, one hundred forty-five thousand, five hundred two".