64163049437448 has 192 divisors, whose sum is σ = 194659771051200. Its totient is φ = 19682829239040.

The previous prime is 64163049437371. The next prime is 64163049437489. The reversal of 64163049437448 is 84473494036146.

It is a happy number.

64163049437448 is a `hidden beast` number, since 6 + 4 + 1 + 6 + 30 + 494 + 3 + 74 + 48 = 666.

It is a super-2 number, since 2×64163049437448² (a number of 28 digits) contains 22 as substring.

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, 4529838 + ... + 12200226.

It is an arithmetic number, because the mean of its divisors is an integer number (1013852974225).

Almost surely, 2^{64163049437448} 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 64163049437448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97329885525600).

64163049437448 is an abundant number, since it is smaller than the sum of its proper divisors (130496721613752).

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

64163049437448 is a wasteful number, since it uses less digits than its factorization.

64163049437448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7670754 (or 7670738 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 63.

The spelling of 64163049437448 in words is "sixty-four trillion, one hundred sixty-three billion, forty-nine million, four hundred thirty-seven thousand, four hundred forty-eight".