157786133126 has 4 divisors (see below), whose sum is σ = 236679199692. Its totient is φ = 78893066562.

The previous prime is 157786133077. The next prime is 157786133201. The reversal of 157786133126 is 621331687751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 621331687751 = 2801 ⋅221824951.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39446533280 + ... + 39446533283.

It is an arithmetic number, because the mean of its divisors is an integer number (59169799923).

Almost surely, 2^157786133126 is an apocalyptic number.

157786133126 is a deficient number, since it is larger than the sum of its proper divisors (78893066566).

157786133126 is an equidigital number, since it uses as much as digits as its factorization.

157786133126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78893066565.

The product of its digits is 1270080, while the sum is 50.

The spelling of 157786133126 in words is "one hundred fifty-seven billion, seven hundred eighty-six million, one hundred thirty-three thousand, one hundred twenty-six".