65648115 has 48 divisors (see below), whose sum is σ = 123282432. Its totient is φ = 32124672.

The previous prime is 65648113. The next prime is 65648119. The reversal of 65648115 is 51184656.

65648115 is a `hidden beast` number, since 6 + 5 + 648 + 1 + 1 + 5 = 666.

It is not a de Polignac number, because 65648115 - 2¹ = 65648113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65648115.

It is not an unprimeable number, because it can be changed into a prime (65648113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 171214 + ... + 171596.

It is an arithmetic number, because the mean of its divisors is an integer number (2568384).

Almost surely, 2^65648115 is an apocalyptic number.

65648115 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65648115 is a deficient number, since it is larger than the sum of its proper divisors (57634317).

65648115 is a wasteful number, since it uses less digits than its factorization.

65648115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 697 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 65648115 is about 8102.3524361756. The cubic root of 65648115 is about 403.4045139192.

The spelling of 65648115 in words is "sixty-five million, six hundred forty-eight thousand, one hundred fifteen".