155136270672 has 60 divisors (see below), whose sum is σ = 441283592724. Its totient is φ = 50864348160.

The previous prime is 155136270661. The next prime is 155136270673. The reversal of 155136270672 is 276072631551.

It is a happy number.

155136270672 is a `hidden beast` number, since 1 + 5 + 5 + 13 + 627 + 0 + 6 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5432279616 + 149703991056 = 73704^2 + 386916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155136270673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8821833 + ... + 8839400.

Almost surely, 2^155136270672 is an apocalyptic number.

155136270672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155136270672 is an abundant number, since it is smaller than the sum of its proper divisors (286147322052).

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

155136270672 is a wasteful number, since it uses less digits than its factorization.

155136270672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17661308 (or 17661299 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 155136270672 in words is "one hundred fifty-five billion, one hundred thirty-six million, two hundred seventy thousand, six hundred seventy-two".