6665078102 has 16 divisors (see below), whose sum is σ = 10383202080. Its totient is φ = 3206035008.

The previous prime is 6665078087. The next prime is 6665078107. The reversal of 6665078102 is 2018705666.

It is a super-2 number, since 2×6665078102² = 88846532211519844808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6665078102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665078107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499418 + ... + 512589.

It is an arithmetic number, because the mean of its divisors is an integer number (648950130).

Almost surely, 2^6665078102 is an apocalyptic number.

6665078102 is a deficient number, since it is larger than the sum of its proper divisors (3718123978).

6665078102 is a wasteful number, since it uses less digits than its factorization.

6665078102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012135.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 6665078102 is about 81639.9295810573. The cubic root of 6665078102 is about 1881.9225562282.

The spelling of 6665078102 in words is "six billion, six hundred sixty-five million, seventy-eight thousand, one hundred two".