155072223276 has 24 divisors (see below), whose sum is σ = 374312263920. Its totient is φ = 49908301632.

The previous prime is 155072223217. The next prime is 155072223277. The reversal of 155072223276 is 672322270551.

155072223276 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155072223277) 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, 222804571 + ... + 222805266.

It is an arithmetic number, because the mean of its divisors is an integer number (15596344330).

Almost surely, 2^155072223276 is an apocalyptic number.

It is an amenable number.

155072223276 is an abundant number, since it is smaller than the sum of its proper divisors (219240040644).

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

155072223276 is a wasteful number, since it uses less digits than its factorization.

155072223276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445609873 (or 445609871 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 155072223276 in words is "one hundred fifty-five billion, seventy-two million, two hundred twenty-three thousand, two hundred seventy-six".