64453576000 has 224 divisors, whose sum is σ = 176999457024. Its totient is φ = 23051520000.

The previous prime is 64453575973. The next prime is 64453576009. The reversal of 64453576000 is 67535446.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64453576009) 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, 5361997 + ... + 5374003.

Almost surely, 2^64453576000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64453576000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88499728512).

64453576000 is an abundant number, since it is smaller than the sum of its proper divisors (112545881024).

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

64453576000 is a wasteful number, since it uses less digits than its factorization.

64453576000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12106 (or 12086 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 64453576000 in words is "sixty-four billion, four hundred fifty-three million, five hundred seventy-six thousand".