64553453544 has 32 divisors (see below), whose sum is σ = 161397180000. Its totient is φ = 21516011712.

The previous prime is 64553453519. The next prime is 64553453551. The reversal of 64553453544 is 44535435546.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64553453493 and 64553453502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196282 + ... + 409430.

It is an arithmetic number, because the mean of its divisors is an integer number (5043661875).

Almost surely, 2^64553453544 is an apocalyptic number.

It is an amenable number.

64553453544 is an abundant number, since it is smaller than the sum of its proper divisors (96843726456).

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

64553453544 is a wasteful number, since it uses less digits than its factorization.

64553453544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225777 (or 225773 counting only the distinct ones).

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

The spelling of 64553453544 in words is "sixty-four billion, five hundred fifty-three million, four hundred fifty-three thousand, five hundred forty-four".