65530506023 has 4 divisors (see below), whose sum is σ = 65585714040. Its totient is φ = 65475298008.

The previous prime is 65530505993. The next prime is 65530506029. The reversal of 65530506023 is 32060503556.

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

It is a cyclic number.

It is not a de Polignac number, because 65530506023 - 2¹⁰ = 65530504999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65530506029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27602228 + ... + 27604601.

It is an arithmetic number, because the mean of its divisors is an integer number (16396428510).

Almost surely, 2^65530506023 is an apocalyptic number.

65530506023 is a deficient number, since it is larger than the sum of its proper divisors (55208017).

65530506023 is a wasteful number, since it uses less digits than its factorization.

65530506023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55208016.

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 65530506023 in words is "sixty-five billion, five hundred thirty million, five hundred six thousand, twenty-three".