157864573666 has 8 divisors (see below), whose sum is σ = 236815675344. Its totient is φ = 78926015220.

The previous prime is 157864573651. The next prime is 157864573733. The reversal of 157864573666 is 666375468751.

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

It is a junction number, because it is equal to n+sod(n) for n = 157864573598 and 157864573607.

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, 3104280 + ... + 3154723.

It is an arithmetic number, because the mean of its divisors is an integer number (29601959418).

Almost surely, 2^157864573666 is an apocalyptic number.

157864573666 is a deficient number, since it is larger than the sum of its proper divisors (78951101678).

157864573666 is a wasteful number, since it uses less digits than its factorization.

157864573666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6271616.

The product of its digits is 152409600, while the sum is 64.

The spelling of 157864573666 in words is "one hundred fifty-seven billion, eight hundred sixty-four million, five hundred seventy-three thousand, six hundred sixty-six".