155657105678 has 12 divisors (see below), whose sum is σ = 248028018792. Its totient is φ = 73250402400.

The previous prime is 155657105677. The next prime is 155657105683. The reversal of 155657105678 is 876501756551.

155657105678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155657105677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134650898 + ... + 134652053.

It is an arithmetic number, because the mean of its divisors is an integer number (20669001566).

Almost surely, 2^155657105678 is an apocalyptic number.

155657105678 is a deficient number, since it is larger than the sum of its proper divisors (92370913114).

155657105678 is a wasteful number, since it uses less digits than its factorization.

155657105678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269302987 (or 269302970 counting only the distinct ones).

The product of its (nonzero) digits is 8820000, while the sum is 56.

The spelling of 155657105678 in words is "one hundred fifty-five billion, six hundred fifty-seven million, one hundred five thousand, six hundred seventy-eight".