148550631840 has 144 divisors (see below), whose sum is σ = 545923640808. Its totient is φ = 36566304768.

The previous prime is 148550631811. The next prime is 148550631841. The reversal of 148550631840 is 48136055841.

148550631840 is a `hidden beast` number, since 1 + 4 + 8 + 5 + 5 + 0 + 631 + 8 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 104968224144 + 43582407696 = 323988^2 + 208764^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (148550631841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3948979 + ... + 3986418.

Almost surely, 2^148550631840 is an apocalyptic number.

148550631840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148550631840 is an abundant number, since it is smaller than the sum of its proper divisors (397373008968).

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

148550631840 is a wasteful number, since it uses less digits than its factorization.

148550631840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7935431 (or 7935420 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 148550631840 in words is "one hundred forty-eight billion, five hundred fifty million, six hundred thirty-one thousand, eight hundred forty".