155242155520012 has 24 divisors (see below), whose sum is σ = 296622337434192. Its totient is φ = 70504866235200.

The previous prime is 155242155519977. The next prime is 155242155520027. The reversal of 155242155520012 is 210025551242551.

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, 1493695203 + ... + 1493799130.

It is an arithmetic number, because the mean of its divisors is an integer number (12359264059758).

Almost surely, 2^{155242155520012} is an apocalyptic number.

It is an amenable number.

155242155520012 is a deficient number, since it is larger than the sum of its proper divisors (141380181914180).

155242155520012 is a wasteful number, since it uses less digits than its factorization.

155242155520012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987495529 (or 2987495527 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 155242155520012 in words is "one hundred fifty-five trillion, two hundred forty-two billion, one hundred fifty-five million, five hundred twenty thousand, twelve".