64611448502000 has 160 divisors (see below), whose sum is σ = 159210360938304. Its totient is φ = 25351827072000.

The previous prime is 64611448501997. The next prime is 64611448502009. The reversal of 64611448502000 is 20584411646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64611448502009) 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, 548067062 + ... + 548184938.

Almost surely, 2^{64611448502000} 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 64611448502000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79605180469152).

64611448502000 is an abundant number, since it is smaller than the sum of its proper divisors (94598912436304).

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

64611448502000 is a wasteful number, since it uses less digits than its factorization.

64611448502000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123124 (or 123108 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 64611448502000 in words is "sixty-four trillion, six hundred eleven billion, four hundred forty-eight million, five hundred two thousand".