148561571448 has 64 divisors (see below), whose sum is σ = 416756944800. Its totient is φ = 49030214400.

The previous prime is 148561571441. The next prime is 148561571449. The reversal of 148561571448 is 844175165841.

148561571448 is a `hidden beast` number, since 1 + 4 + 8 + 5 + 61 + 571 + 4 + 4 + 8 = 666.

It is a super-2 number, since 2×148561571448² (a number of 23 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 = 148561571394 and 148561571403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148561571441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3383061 + ... + 3426692.

Almost surely, 2^148561571448 is an apocalyptic number.

148561571448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

148561571448 is an abundant number, since it is smaller than the sum of its proper divisors (268195373352).

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

148561571448 is a wasteful number, since it uses less digits than its factorization.

148561571448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809869 (or 6809859 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The spelling of 148561571448 in words is "one hundred forty-eight billion, five hundred sixty-one million, five hundred seventy-one thousand, four hundred forty-eight".