42051553156 has 6 divisors (see below), whose sum is σ = 73590218030. Its totient is φ = 21025776576.

The previous prime is 42051553147. The next prime is 42051553237. The reversal of 42051553156 is 65135515024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26987918400 + 15063634756 = 164280^2 + 122734^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5256444141 + ... + 5256444148.

Almost surely, 2^42051553156 is an apocalyptic number.

It is an amenable number.

42051553156 is a deficient number, since it is larger than the sum of its proper divisors (31538664874).

42051553156 is a wasteful number, since it uses less digits than its factorization.

42051553156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512888293 (or 10512888291 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 42051553156 in words is "forty-two billion, fifty-one million, five hundred fifty-three thousand, one hundred fifty-six".