155513240323142 has 32 divisors (see below), whose sum is σ = 252258479172000. Its totient is φ = 71476931808000.

The previous prime is 155513240323093. The next prime is 155513240323159. The reversal of 155513240323142 is 241323042315551.

It is a self number, because there is not a number n which added to its sum of digits gives 155513240323142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35445458 + ... + 39590490.

It is an arithmetic number, because the mean of its divisors is an integer number (7883077474125).

Almost surely, 2^{155513240323142} is an apocalyptic number.

155513240323142 is a deficient number, since it is larger than the sum of its proper divisors (96745238848858).

155513240323142 is a wasteful number, since it uses less digits than its factorization.

155513240323142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151048.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 155513240323142 its reverse (241323042315551), we get a palindrome (396836282638693).

The spelling of 155513240323142 in words is "one hundred fifty-five trillion, five hundred thirteen billion, two hundred forty million, three hundred twenty-three thousand, one hundred forty-two".