155123110234552 has 32 divisors (see below), whose sum is σ = 291284427934080. Its totient is φ = 77447268707040.

The previous prime is 155123110234541. The next prime is 155123110234579. The reversal of 155123110234552 is 255432011321551.

It is a super-3 number, since 3×155123110234552³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221450253 + ... + 222149635.

It is an arithmetic number, because the mean of its divisors is an integer number (9102638372940).

Almost surely, 2^{155123110234552} is an apocalyptic number.

It is an amenable number.

155123110234552 is a deficient number, since it is larger than the sum of its proper divisors (136161317699528).

155123110234552 is a wasteful number, since it uses less digits than its factorization.

155123110234552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740203 (or 740199 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 155123110234552 in words is "one hundred fifty-five trillion, one hundred twenty-three billion, one hundred ten million, two hundred thirty-four thousand, five hundred fifty-two".