155151244525200 has 960 divisors, whose sum is σ = 656609345169408. Its totient is φ = 30318641971200.

The previous prime is 155151244525141. The next prime is 155151244525201. The reversal of 155151244525200 is 2525442151551.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (155151244525201) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2005872927 + ... + 2005950273.

Almost surely, 2^{155151244525200} is an apocalyptic number.

155151244525200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155151244525200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328304672584704).

155151244525200 is an abundant number, since it is smaller than the sum of its proper divisors (501458100644208).

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

155151244525200 is a wasteful number, since it uses less digits than its factorization.

155151244525200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78680 (or 78669 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 42.

Adding to 155151244525200 its reverse (2525442151551), we get a palindrome (157676686676751).

The spelling of 155151244525200 in words is "one hundred fifty-five trillion, one hundred fifty-one billion, two hundred forty-four million, five hundred twenty-five thousand, two hundred".