155075181570552 has 32 divisors (see below), whose sum is σ = 408092583081600. Its totient is φ = 48971109969504.

The previous prime is 155075181570541. The next prime is 155075181570593. The reversal of 155075181570552 is 255075181570551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 155075181570492 and 155075181570501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170038575828 + ... + 170038576739.

It is an arithmetic number, because the mean of its divisors is an integer number (12752893221300).

Almost surely, 2^{155075181570552} is an apocalyptic number.

155075181570552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155075181570552 is an abundant number, since it is smaller than the sum of its proper divisors (253017401511048).

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

155075181570552 is a wasteful number, since it uses less digits than its factorization.

155075181570552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340077152595 (or 340077152591 counting only the distinct ones).

The product of its (nonzero) digits is 12250000, while the sum is 57.

Subtracting 155075181570552 from its reverse (255075181570551), we obtain a palindrome (99999999999999).

The spelling of 155075181570552 in words is "one hundred fifty-five trillion, seventy-five billion, one hundred eighty-one million, five hundred seventy thousand, five hundred fifty-two".