155111442052 has 48 divisors (see below), whose sum is σ = 329783690880. Its totient is φ = 62354016000.

The previous prime is 155111442049. The next prime is 155111442061. The reversal of 155111442052 is 250244111551.

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, 1389649 + ... + 1497112.

It is an arithmetic number, because the mean of its divisors is an integer number (6870493560).

Almost surely, 2^155111442052 is an apocalyptic number.

It is an amenable number.

155111442052 is an abundant number, since it is smaller than the sum of its proper divisors (174672248828).

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

155111442052 is a wasteful number, since it uses less digits than its factorization.

155111442052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886892 (or 2886890 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

The spelling of 155111442052 in words is "one hundred fifty-five billion, one hundred eleven million, four hundred forty-two thousand, fifty-two".