646101470112 has 288 divisors, whose sum is σ = 2026111836672. Its totient is φ = 179654340096.

The previous prime is 646101470099. The next prime is 646101470137. The reversal of 646101470112 is 211074101646.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57237333 + ... + 57248619.

It is an arithmetic number, because the mean of its divisors is an integer number (7035110544).

Almost surely, 2^646101470112 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 646101470112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1013055918336).

646101470112 is an abundant number, since it is smaller than the sum of its proper divisors (1380010366560).

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

646101470112 is a wasteful number, since it uses less digits than its factorization.

646101470112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11640 (or 11625 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

Adding to 646101470112 its reverse (211074101646), we get a palindrome (857175571758).

The spelling of 646101470112 in words is "six hundred forty-six billion, one hundred one million, four hundred seventy thousand, one hundred twelve".