64148185548 has 120 divisors (see below), whose sum is σ = 182216939520. Its totient is φ = 19603801440.

The previous prime is 64148185501. The next prime is 64148185559. The reversal of 64148185548 is 84558184146.

64148185548 is a `hidden beast` number, since 6 + 4 + 1 + 4 + 81 + 8 + 554 + 8 = 666.

It is a super-2 number, since 2×64148185548² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 64148185494 and 64148185503.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22765 + ... + 358907.

It is an arithmetic number, because the mean of its divisors is an integer number (1518474496).

Almost surely, 2^64148185548 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 64148185548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91108469760).

64148185548 is an abundant number, since it is smaller than the sum of its proper divisors (118068753972).

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

64148185548 is a wasteful number, since it uses less digits than its factorization.

64148185548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336209 (or 336198 counting only the distinct ones).

The product of its digits is 4915200, while the sum is 54.

The spelling of 64148185548 in words is "sixty-four billion, one hundred forty-eight million, one hundred eighty-five thousand, five hundred forty-eight".