65132440654 has 4 divisors (see below), whose sum is σ = 97698660984. Its totient is φ = 32566220326.

The previous prime is 65132440651. The next prime is 65132440673. The reversal of 65132440654 is 45604423156.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65132440651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16283110162 + ... + 16283110165.

It is an arithmetic number, because the mean of its divisors is an integer number (24424665246).

Almost surely, 2^65132440654 is an apocalyptic number.

65132440654 is a deficient number, since it is larger than the sum of its proper divisors (32566220330).

65132440654 is a wasteful number, since it uses less digits than its factorization.

65132440654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32566220329.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 65132440654 in words is "sixty-five billion, one hundred thirty-two million, four hundred forty thousand, six hundred fifty-four".