65948618 has 4 divisors (see below), whose sum is σ = 98922930. Its totient is φ = 32974308.

The previous prime is 65948611. The next prime is 65948629. The reversal of 65948618 is 81684956.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56505289 + 9443329 = 7517^2 + 3073^2 .

It is a super-2 number, since 2×65948618² = 8698440432219848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65948611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16487153 + ... + 16487156.

Almost surely, 2^65948618 is an apocalyptic number.

65948618 is a deficient number, since it is larger than the sum of its proper divisors (32974312).

65948618 is a wasteful number, since it uses less digits than its factorization.

65948618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32974311.

The product of its digits is 414720, while the sum is 47.

The square root of 65948618 is about 8120.8754454184. The cubic root of 65948618 is about 404.0191026160.

It can be divided in two parts, 65948 and 618, that added together give a palindrome (66566).

The spelling of 65948618 in words is "sixty-five million, nine hundred forty-eight thousand, six hundred eighteen".