64454525706800 has 120 divisors (see below), whose sum is σ = 156217844989440. Its totient is φ = 25555332409600.

The previous prime is 64454525706757. The next prime is 64454525706853. The reversal of 64454525706800 is 860752545446.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20820329 + ... + 23714871.

It is an arithmetic number, because the mean of its divisors is an integer number (1301815374912).

Almost surely, 2^{64454525706800} 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 64454525706800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78108922494720).

64454525706800 is an abundant number, since it is smaller than the sum of its proper divisors (91763319282640).

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

64454525706800 is a wasteful number, since it uses less digits than its factorization.

64454525706800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895051 (or 2895040 counting only the distinct ones).

The product of its (nonzero) digits is 32256000, while the sum is 56.

The spelling of 64454525706800 in words is "sixty-four trillion, four hundred fifty-four billion, five hundred twenty-five million, seven hundred six thousand, eight hundred".