155354343247872 has 130 divisors (see below), whose sum is σ = 464088417545478. Its totient is φ = 51784780972032.

The previous prime is 155354343247867. The next prime is 155354343247889. The reversal of 155354343247872 is 278742343453551.

155354343247872 is a `hidden beast` number, since 1 + 5 + 5 + 3 + 54 + 3 + 43 + 2 + 478 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 115907100512256 + 39447242735616 = 10766016^2 + 6280704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 233793573 + ... + 234457124.

Almost surely, 2^{155354343247872} is an apocalyptic number.

155354343247872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155354343247872 is an abundant number, since it is smaller than the sum of its proper divisors (308734074297606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155354343247872 is an frugal number, since it uses more digits than its factorization.

155354343247872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468250733 (or 468250702 counting only the distinct ones).

The product of its digits is 338688000, while the sum is 63.

The spelling of 155354343247872 in words is "one hundred fifty-five trillion, three hundred fifty-four billion, three hundred forty-three million, two hundred forty-seven thousand, eight hundred seventy-two".