157018204498 has 4 divisors (see below), whose sum is σ = 235527306750. Its totient is φ = 78509102248.

The previous prime is 157018204489. The next prime is 157018204531. The reversal of 157018204498 is 894402810751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 894402810751 = 5783 ⋅154660697.

It can be written as a sum of positive squares in only one way, i.e., 99229410049 + 57788794449 = 315007^2 + 240393^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39254551123 + ... + 39254551126.

Almost surely, 2^157018204498 is an apocalyptic number.

157018204498 is a deficient number, since it is larger than the sum of its proper divisors (78509102252).

157018204498 is an equidigital number, since it uses as much as digits as its factorization.

157018204498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78509102251.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 157018204498 in words is "one hundred fifty-seven billion, eighteen million, two hundred four thousand, four hundred ninety-eight".