148755721631418 has 128 divisors (see below), whose sum is σ = 383052789815040. Its totient is φ = 42290327439360.

The previous prime is 148755721631219. The next prime is 148755721631437. The reversal of 148755721631418 is 814136127557841.

148755721631418 is a `hidden beast` number, since 1 + 4 + 8 + 7 + 5 + 57 + 2 + 163 + 1 + 418 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20371605 + ... + 26692952.

It is an arithmetic number, because the mean of its divisors is an integer number (2992599920430).

Almost surely, 2^{148755721631418} is an apocalyptic number.

148755721631418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

148755721631418 is an abundant number, since it is smaller than the sum of its proper divisors (234297068183622).

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

148755721631418 is a wasteful number, since it uses less digits than its factorization.

148755721631418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47064909 (or 47064903 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 63.

The spelling of 148755721631418 in words is "one hundred forty-eight trillion, seven hundred fifty-five billion, seven hundred twenty-one million, six hundred thirty-one thousand, four hundred eighteen".