6662510385 has 8 divisors (see below), whose sum is σ = 10660016640. Its totient is φ = 3553338864.

The previous prime is 6662510381. The next prime is 6662510399. The reversal of 6662510385 is 5830152666.

It is a happy number.

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

It is not a de Polignac number, because 6662510385 - 2² = 6662510381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6662510381) 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, 222083665 + ... + 222083694.

It is an arithmetic number, because the mean of its divisors is an integer number (1332502080).

Almost surely, 2^6662510385 is an apocalyptic number.

It is an amenable number.

6662510385 is a deficient number, since it is larger than the sum of its proper divisors (3997506255).

6662510385 is a wasteful number, since it uses less digits than its factorization.

6662510385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444167367.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 6662510385 is about 81624.2022013079. The cubic root of 6662510385 is about 1881.6808553740.

The spelling of 6662510385 in words is "six billion, six hundred sixty-two million, five hundred ten thousand, three hundred eighty-five".