64455343545 has 32 divisors (see below), whose sum is σ = 104117916672. Its totient is φ = 34047965952.

The previous prime is 64455343541. The next prime is 64455343559. The reversal of 64455343545 is 54534355446.

It is not a de Polignac number, because 64455343545 - 2² = 64455343541 is a prime.

It is a super-3 number, since 3×64455343545³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64455343494 and 64455343503.

It is not an unprimeable number, because it can be changed into a prime (64455343541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 610059 + ... + 707871.

It is an arithmetic number, because the mean of its divisors is an integer number (3253684896).

Almost surely, 2^64455343545 is an apocalyptic number.

It is an amenable number.

64455343545 is a deficient number, since it is larger than the sum of its proper divisors (39662573127).

64455343545 is a wasteful number, since it uses less digits than its factorization.

64455343545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98241.

The product of its digits is 8640000, while the sum is 48.

The spelling of 64455343545 in words is "sixty-four billion, four hundred fifty-five million, three hundred forty-three thousand, five hundred forty-five".