42155231156 has 6 divisors (see below), whose sum is σ = 73771654530. Its totient is φ = 21077615576.

The previous prime is 42155231147. The next prime is 42155231171. The reversal of 42155231156 is 65113255124.

42155231156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 29223902500 + 12931328656 = 170950^2 + 113716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5269403891 + ... + 5269403898.

It is an arithmetic number, because the mean of its divisors is an integer number (12295275755).

Almost surely, 2^42155231156 is an apocalyptic number.

It is an amenable number.

42155231156 is a deficient number, since it is larger than the sum of its proper divisors (31616423374).

42155231156 is a wasteful number, since it uses less digits than its factorization.

42155231156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10538807793 (or 10538807791 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The spelling of 42155231156 in words is "forty-two billion, one hundred fifty-five million, two hundred thirty-one thousand, one hundred fifty-six".