155123261313452 has 48 divisors (see below), whose sum is σ = 291457622007552. Its totient is φ = 72063697083840.

The previous prime is 155123261313413. The next prime is 155123261313463. The reversal of 155123261313452 is 254313162321551.

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, 107604818 + ... + 109036889.

It is an arithmetic number, because the mean of its divisors is an integer number (6072033791824).

Almost surely, 2^{155123261313452} is an apocalyptic number.

It is an amenable number.

155123261313452 is a deficient number, since it is larger than the sum of its proper divisors (136334360694100).

155123261313452 is a wasteful number, since it uses less digits than its factorization.

155123261313452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216641958 (or 216641956 counting only the distinct ones).

The product of its digits is 648000, while the sum is 44.

The spelling of 155123261313452 in words is "one hundred fifty-five trillion, one hundred twenty-three billion, two hundred sixty-one million, three hundred thirteen thousand, four hundred fifty-two".