155601428165 has 8 divisors (see below), whose sum is σ = 188065036320. Its totient is φ = 123585594192.

The previous prime is 155601428069. The next prime is 155601428167. The reversal of 155601428165 is 561824106551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155601428165 - 2¹⁰ = 155601427141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155601428167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111942779 + ... + 111944168.

It is an arithmetic number, because the mean of its divisors is an integer number (23508129540).

Almost surely, 2^155601428165 is an apocalyptic number.

It is an amenable number.

155601428165 is a deficient number, since it is larger than the sum of its proper divisors (32463608155).

155601428165 is a wasteful number, since it uses less digits than its factorization.

155601428165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223887091.

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 155601428165 in words is "one hundred fifty-five billion, six hundred one million, four hundred twenty-eight thousand, one hundred sixty-five".