65643714045 has 48 divisors (see below), whose sum is σ = 140039932032. Its totient is φ = 27700202880.

The previous prime is 65643714001. The next prime is 65643714067. The reversal of 65643714045 is 54041734656.

65643714045 is a `hidden beast` number, since 6 + 564 + 3 + 7 + 1 + 40 + 45 = 666.

It is not a de Polignac number, because 65643714045 - 2⁸ = 65643713789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8011011 + ... + 8019200.

It is an arithmetic number, because the mean of its divisors is an integer number (2917498584).

Almost surely, 2^65643714045 is an apocalyptic number.

65643714045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65643714045 is an abundant number, since it is smaller than the sum of its proper divisors (74396217987).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65643714045 is a wasteful number, since it uses less digits than its factorization.

65643714045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16030242 (or 16030239 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 65643714045 in words is "sixty-five billion, six hundred forty-three million, seven hundred fourteen thousand, forty-five".