64265346645 has 16 divisors (see below), whose sum is σ = 103440274560. Its totient is φ = 34069611584.

The previous prime is 64265346643. The next prime is 64265346667. The reversal of 64265346645 is 54664356246.

It is a cyclic number.

It is not a de Polignac number, because 64265346645 - 2¹ = 64265346643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64265346641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12824910 + ... + 12829919.

It is an arithmetic number, because the mean of its divisors is an integer number (6465017160).

Almost surely, 2^64265346645 is an apocalyptic number.

It is an amenable number.

64265346645 is a deficient number, since it is larger than the sum of its proper divisors (39174927915).

64265346645 is a wasteful number, since it uses less digits than its factorization.

64265346645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25655004.

The product of its digits is 12441600, while the sum is 51.

The spelling of 64265346645 in words is "sixty-four billion, two hundred sixty-five million, three hundred forty-six thousand, six hundred forty-five".