164539553018 has 4 divisors (see below), whose sum is σ = 246809329530. Its totient is φ = 82269776508.

The previous prime is 164539552979. The next prime is 164539553023. The reversal of 164539553018 is 810355935461.

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., 136631511769 + 27908041249 = 369637^2 + 167057^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41134888253 + ... + 41134888256.

Almost surely, 2^164539553018 is an apocalyptic number.

164539553018 is a deficient number, since it is larger than the sum of its proper divisors (82269776512).

164539553018 is an equidigital number, since it uses as much as digits as its factorization.

164539553018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82269776511.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 164539553018 in words is "one hundred sixty-four billion, five hundred thirty-nine million, five hundred fifty-three thousand, eighteen".