665152015 has 8 divisors (see below), whose sum is σ = 870744528. Its totient is φ = 483746880.

The previous prime is 665152001. The next prime is 665152031. The reversal of 665152015 is 510251566.

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

It is not a de Polignac number, because 665152015 - 2¹⁹ = 664627727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6046782 + ... + 6046891.

It is an arithmetic number, because the mean of its divisors is an integer number (108843066).

Almost surely, 2^665152015 is an apocalyptic number.

665152015 is a deficient number, since it is larger than the sum of its proper divisors (205592513).

665152015 is a wasteful number, since it uses less digits than its factorization.

665152015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12093689.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 665152015 is about 25790.5411924605. The cubic root of 665152015 is about 872.9183780140.

The spelling of 665152015 in words is "six hundred sixty-five million, one hundred fifty-two thousand, fifteen".