155312415111200 has 72 divisors (see below), whose sum is σ = 379789416921600. Its totient is φ = 62021251385600.

The previous prime is 155312415111187. The next prime is 155312415111209. The reversal of 155312415111200 is 2111514213551.

155312415111200 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-2 number, since 2×155312415111200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (155312415111209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161574656 + ... + 162533055.

It is an arithmetic number, because the mean of its divisors is an integer number (5274853012800).

Almost surely, 2^{155312415111200} is an apocalyptic number.

155312415111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155312415111200 is an abundant number, since it is smaller than the sum of its proper divisors (224477001810400).

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

155312415111200 is a wasteful number, since it uses less digits than its factorization.

155312415111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324108330 (or 324108317 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 32.

Adding to 155312415111200 its reverse (2111514213551), we get a palindrome (157423929324751).

The spelling of 155312415111200 in words is "one hundred fifty-five trillion, three hundred twelve billion, four hundred fifteen million, one hundred eleven thousand, two hundred".