538322066 has 4 divisors (see below), whose sum is σ = 807483102. Its totient is φ = 269161032.

The previous prime is 538322053. The next prime is 538322069. The reversal of 538322066 is 660223835.

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., 295118041 + 243204025 = 17179^2 + 15595^2 .

It is not an unprimeable number, because it can be changed into a prime (538322069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134580515 + ... + 134580518.

Almost surely, 2^538322066 is an apocalyptic number.

538322066 is a deficient number, since it is larger than the sum of its proper divisors (269161036).

538322066 is a wasteful number, since it uses less digits than its factorization.

538322066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269161035.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 538322066 is about 23201.7685963808. The cubic root of 538322066 is about 813.4809628925.

The spelling of 538322066 in words is "five hundred thirty-eight million, three hundred twenty-two thousand, sixty-six".