155123507670 has 32 divisors (see below), whose sum is σ = 373922183520. Its totient is φ = 41185628160.

The previous prime is 155123507663. The next prime is 155123507743. The reversal of 155123507670 is 76705321551.

155123507670 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11283051 + ... + 11296790.

It is an arithmetic number, because the mean of its divisors is an integer number (11685068235).

Almost surely, 2^155123507670 is an apocalyptic number.

155123507670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155123507670 is an abundant number, since it is smaller than the sum of its proper divisors (218798675850).

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

155123507670 is a wasteful number, since it uses less digits than its factorization.

155123507670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22580080.

The product of its (nonzero) digits is 220500, while the sum is 42.

The spelling of 155123507670 in words is "one hundred fifty-five billion, one hundred twenty-three million, five hundred seven thousand, six hundred seventy".