1915053665 has 8 divisors (see below), whose sum is σ = 2626359360. Its totient is φ = 1313179632.

The previous prime is 1915053661. The next prime is 1915053797. The reversal of 1915053665 is 5663505191.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1915053665 - 2² = 1915053661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1915053661) 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, 27357875 + ... + 27357944.

It is an arithmetic number, because the mean of its divisors is an integer number (328294920).

Almost surely, 2^1915053665 is an apocalyptic number.

It is an amenable number.

1915053665 is a deficient number, since it is larger than the sum of its proper divisors (711305695).

1915053665 is an equidigital number, since it uses as much as digits as its factorization.

1915053665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54715831.

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 1915053665 is about 43761.3261339279. The cubic root of 1915053665 is about 1241.8247641781.

The spelling of 1915053665 in words is "one billion, nine hundred fifteen million, fifty-three thousand, six hundred sixty-five".