665010115 has 32 divisors (see below), whose sum is σ = 1015257600. Its totient is φ = 414540000.

The previous prime is 665010079. The next prime is 665010121. The reversal of 665010115 is 511010566.

It is not a de Polignac number, because 665010115 - 2⁷ = 665009987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 665010115.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1240 + ... + 36490.

It is an arithmetic number, because the mean of its divisors is an integer number (31726800).

Almost surely, 2^665010115 is an apocalyptic number.

665010115 is a deficient number, since it is larger than the sum of its proper divisors (350247485).

665010115 is a wasteful number, since it uses less digits than its factorization.

665010115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35288 (or 35274 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 665010115 is about 25787.7900371474. The cubic root of 665010115 is about 872.8562990083.

The spelling of 665010115 in words is "six hundred sixty-five million, ten thousand, one hundred fifteen".