155227349918 has 16 divisors (see below), whose sum is σ = 245104944000. Its totient is φ = 73526006232.

The previous prime is 155227349887. The next prime is 155227349941. The reversal of 155227349918 is 819943722551.

155227349918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×155227349918³ (a number of 35 digits) contains 333 as substring.

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, 1264463 + ... + 1381781.

It is an arithmetic number, because the mean of its divisors is an integer number (15319059000).

Almost surely, 2^155227349918 is an apocalyptic number.

155227349918 is a deficient number, since it is larger than the sum of its proper divisors (89877594082).

155227349918 is a wasteful number, since it uses less digits than its factorization.

155227349918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152159.

The product of its digits is 5443200, while the sum is 56.

The spelling of 155227349918 in words is "one hundred fifty-five billion, two hundred twenty-seven million, three hundred forty-nine thousand, nine hundred eighteen".