148779788655 has 16 divisors (see below), whose sum is σ = 243583655040. Its totient is φ = 77503889568.

The previous prime is 148779788623. The next prime is 148779788657. The reversal of 148779788655 is 556887977841.

It is not a de Polignac number, because 148779788655 - 2⁵ = 148779788623 is a prime.

It is a super-3 number, since 3×148779788655³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148779788657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115332525 + ... + 115333814.

It is an arithmetic number, because the mean of its divisors is an integer number (15223978440).

Almost surely, 2^148779788655 is an apocalyptic number.

148779788655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

148779788655 is a deficient number, since it is larger than the sum of its proper divisors (94803866385).

148779788655 is a wasteful number, since it uses less digits than its factorization.

148779788655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230666390.

The product of its digits is 948326400, while the sum is 75.

The spelling of 148779788655 in words is "one hundred forty-eight billion, seven hundred seventy-nine million, seven hundred eighty-eight thousand, six hundred fifty-five".