42155255124 has 36 divisors (see below), whose sum is σ = 106630625556. Its totient is φ = 14042322048.

The previous prime is 42155255119. The next prime is 42155255143.

42155255124 is a `hidden beast` number, since 4 + 2 + 1 + 5 + 525 + 5 + 124 = 666.

42155255124 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 39389547024 + 2765708100 = 198468^2 + 52590^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338409 + ... + 445904.

It is an arithmetic number, because the mean of its divisors is an integer number (2961961821).

Almost surely, 2^42155255124 is an apocalyptic number.

It is an amenable number.

42155255124 is an abundant number, since it is smaller than the sum of its proper divisors (64475370432).

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

42155255124 is a wasteful number, since it uses less digits than its factorization.

42155255124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785816 (or 785811 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The spelling of 42155255124 in words is "forty-two billion, one hundred fifty-five million, two hundred fifty-five thousand, one hundred twenty-four".