64577226544 has 20 divisors (see below), whose sum is σ = 125123130000. Its totient is φ = 32287386560.

The previous prime is 64577226451. The next prime is 64577226547. The reversal of 64577226544 is 44562277546.

It is a junction number, because it is equal to n+sod(n) for n = 64577226491 and 64577226500.

It is not an unprimeable number, because it can be changed into a prime (64577226547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480189 + ... + 599779.

It is an arithmetic number, because the mean of its divisors is an integer number (6256156500).

Almost surely, 2^64577226544 is an apocalyptic number.

It is an amenable number.

64577226544 is a deficient number, since it is larger than the sum of its proper divisors (60545903456).

64577226544 is a wasteful number, since it uses less digits than its factorization.

64577226544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153348 (or 153342 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 52.

The spelling of 64577226544 in words is "sixty-four billion, five hundred seventy-seven million, two hundred twenty-six thousand, five hundred forty-four".