148381639164 has 144 divisors (see below), whose sum is σ = 442350679680. Its totient is φ = 41446235520.

The previous prime is 148381639151. The next prime is 148381639169. The reversal of 148381639164 is 461936183841.

148381639164 is a `hidden beast` number, since 1 + 48 + 381 + 63 + 9 + 164 = 666.

It is a super-2 number, since 2×148381639164² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 148381639164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148381639169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11887 + ... + 544889.

It is an arithmetic number, because the mean of its divisors is an integer number (3071879720).

Almost surely, 2^148381639164 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 148381639164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221175339840).

148381639164 is an abundant number, since it is smaller than the sum of its proper divisors (293969040516).

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

148381639164 is a wasteful number, since it uses less digits than its factorization.

148381639164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533080 (or 533075 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 148381639164 in words is "one hundred forty-eight billion, three hundred eighty-one million, six hundred thirty-nine thousand, one hundred sixty-four".