65546945 has 8 divisors (see below), whose sum is σ = 78986880. Its totient is φ = 52217200.

The previous prime is 65546891. The next prime is 65546947. The reversal of 65546945 is 54964556.

65546945 is nontrivially palindromic in base 15.

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

It is not a de Polignac number, because 65546945 - 2¹² = 65542849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65546896 and 65546905.

It is not an unprimeable number, because it can be changed into a prime (65546947) 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, 26231 + ... + 28620.

It is an arithmetic number, because the mean of its divisors is an integer number (9873360).

Almost surely, 2^65546945 is an apocalyptic number.

It is an amenable number.

65546945 is a deficient number, since it is larger than the sum of its proper divisors (13439935).

65546945 is a wasteful number, since it uses less digits than its factorization.

65546945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55095.

The product of its digits is 648000, while the sum is 44.

The square root of 65546945 is about 8096.1067804223. The cubic root of 65546945 is about 403.1971791114.

The spelling of 65546945 in words is "sixty-five million, five hundred forty-six thousand, nine hundred forty-five".