155006505011164 has 24 divisors (see below), whose sum is σ = 273664198862208. Its totient is φ = 76818171646320.

The previous prime is 155006505011159. The next prime is 155006505011221. The reversal of 155006505011164 is 461110505600551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179285602 + ... + 180148105.

It is an arithmetic number, because the mean of its divisors is an integer number (11402674952592).

Almost surely, 2^{155006505011164} is an apocalyptic number.

It is an amenable number.

155006505011164 is a deficient number, since it is larger than the sum of its proper divisors (118657693851044).

155006505011164 is a wasteful number, since it uses less digits than its factorization.

155006505011164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359434665 (or 359434663 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 155006505011164 in words is "one hundred fifty-five trillion, six billion, five hundred five million, eleven thousand, one hundred sixty-four".