126162655042 has 4 divisors (see below), whose sum is σ = 189243982566. Its totient is φ = 63081327520.

The previous prime is 126162655001. The next prime is 126162655081. The reversal of 126162655042 is 240556261621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100811965081 + 25350689961 = 317509^2 + 159219^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 126162654986 and 126162655004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31540663759 + ... + 31540663762.

Almost surely, 2^126162655042 is an apocalyptic number.

126162655042 is a deficient number, since it is larger than the sum of its proper divisors (63081327524).

126162655042 is an equidigital number, since it uses as much as digits as its factorization.

126162655042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63081327523.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 126162655042 in words is "one hundred twenty-six billion, one hundred sixty-two million, six hundred fifty-five thousand, forty-two".