157866262538 has 8 divisors (see below), whose sum is σ = 237378366660. Its totient is φ = 78740140320.

The previous prime is 157866262501. The next prime is 157866262601. The reversal of 157866262538 is 835262668751.

It can be written as a sum of positive squares in 2 ways, for example, as 156995835529 + 870427009 = 396227^2 + 29503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96494453 + ... + 96496088.

Almost surely, 2^157866262538 is an apocalyptic number.

157866262538 is a deficient number, since it is larger than the sum of its proper divisors (79512104122).

157866262538 is a wasteful number, since it uses less digits than its factorization.

157866262538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192990952.

The product of its digits is 29030400, while the sum is 59.

The spelling of 157866262538 in words is "one hundred fifty-seven billion, eight hundred sixty-six million, two hundred sixty-two thousand, five hundred thirty-eight".