155521551522134 has 16 divisors (see below), whose sum is σ = 272280892635648. Its totient is φ = 65233963860072.

The previous prime is 155521551522121. The next prime is 155521551522163. The reversal of 155521551522134 is 431225155125551.

It is a Harshad number since it is a multiple of its sum of digits (47).

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, 118177470104 + ... + 118177471419.

It is an arithmetic number, because the mean of its divisors is an integer number (17017555789728).

Almost surely, 2^{155521551522134} is an apocalyptic number.

155521551522134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155521551522134 is a deficient number, since it is larger than the sum of its proper divisors (116759341113514).

155521551522134 is a wasteful number, since it uses less digits than its factorization.

155521551522134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236354941579.

The product of its digits is 1500000, while the sum is 47.

The spelling of 155521551522134 in words is "one hundred fifty-five trillion, five hundred twenty-one billion, five hundred fifty-one million, five hundred twenty-two thousand, one hundred thirty-four".