155967872 has 32 divisors (see below), whose sum is σ = 314231400. Its totient is φ = 77102080.

The previous prime is 155967871. The next prime is 155967907. The reversal of 155967872 is 278769551.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 155967872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155967871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4547 + ... + 18237.

Almost surely, 2^155967872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155967872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157115700).

155967872 is an abundant number, since it is smaller than the sum of its proper divisors (158263528).

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

155967872 is an equidigital number, since it uses as much as digits as its factorization.

155967872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13794 (or 13782 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 50.

The square root of 155967872 is about 12488.7097812384. The cubic root of 155967872 is about 538.2843031469.

The spelling of 155967872 in words is "one hundred fifty-five million, nine hundred sixty-seven thousand, eight hundred seventy-two".