187940055155 has 8 divisors (see below), whose sum is σ = 226964551632. Its totient is φ = 149394387168.

The previous prime is 187940055143. The next prime is 187940055179. The reversal of 187940055155 is 551550049781.

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 187940055155 - 2¹⁸ = 187939793011 is a prime.

It is a Duffinian 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, 119706257 + ... + 119707826.

It is an arithmetic number, because the mean of its divisors is an integer number (28370568954).

Almost surely, 2^187940055155 is an apocalyptic number.

187940055155 is a deficient number, since it is larger than the sum of its proper divisors (39024496477).

187940055155 is a wasteful number, since it uses less digits than its factorization.

187940055155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239414245.

The product of its (nonzero) digits is 1260000, while the sum is 50.

The spelling of 187940055155 in words is "one hundred eighty-seven billion, nine hundred forty million, fifty-five thousand, one hundred fifty-five".