155405164566 has 32 divisors (see below), whose sum is σ = 311228064000. Its totient is φ = 51732151200.

The previous prime is 155405164549. The next prime is 155405164567. The reversal of 155405164566 is 665461504551.

155405164566 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 not an unprimeable number, because it can be changed into a prime (155405164567) by changing a digit.

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, 15952125 + ... + 15961863.

It is an arithmetic number, because the mean of its divisors is an integer number (9725877000).

Almost surely, 2^155405164566 is an apocalyptic number.

155405164566 is an abundant number, since it is smaller than the sum of its proper divisors (155822899434).

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

155405164566 is a wasteful number, since it uses less digits than its factorization.

155405164566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13044.

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 155405164566 in words is "one hundred fifty-five billion, four hundred five million, one hundred sixty-four thousand, five hundred sixty-six".