155142241550 has 48 divisors (see below), whose sum is σ = 301162724352. Its totient is φ = 59348546400.

The previous prime is 155142241549. The next prime is 155142241567. The reversal of 155142241550 is 55142241551.

155142241550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155142241550² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155142241550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13001687 + ... + 13013613.

It is an arithmetic number, because the mean of its divisors is an integer number (6274223424).

Almost surely, 2^155142241550 is an apocalyptic number.

155142241550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155142241550 is a deficient number, since it is larger than the sum of its proper divisors (146020482802).

155142241550 is a wasteful number, since it uses less digits than its factorization.

155142241550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23273 (or 23268 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

Subtracting from 155142241550 its reverse (55142241551), we obtain a palindrome (99999999999).

The spelling of 155142241550 in words is "one hundred fifty-five billion, one hundred forty-two million, two hundred forty-one thousand, five hundred fifty".