64248905106 has 128 divisors (see below), whose sum is σ = 151928340480. Its totient is φ = 20092406400.

The previous prime is 64248905093. The next prime is 64248905141. The reversal of 64248905106 is 60150984246.

64248905106 is a `hidden beast` number, since 6 + 4 + 2 + 48 + 90 + 510 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11184471 + ... + 11190213.

It is an arithmetic number, because the mean of its divisors is an integer number (1186940160).

Almost surely, 2^64248905106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64248905106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75964170240).

64248905106 is an abundant number, since it is smaller than the sum of its proper divisors (87679435374).

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

64248905106 is a wasteful number, since it uses less digits than its factorization.

64248905106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989 (or 5983 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 64248905106 in words is "sixty-four billion, two hundred forty-eight million, nine hundred five thousand, one hundred six".