66799034 has 4 divisors (see below), whose sum is σ = 100198554. Its totient is φ = 33399516.

The previous prime is 66799009. The next prime is 66799043. The reversal of 66799034 is 43099766.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43099766 = 2 ⋅21549883.

It can be written as a sum of positive squares in only one way, i.e., 44849809 + 21949225 = 6697^2 + 4685^2 .

It is a super-2 number, since 2×66799034² = 8924221886666312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16699757 + ... + 16699760.

Almost surely, 2^66799034 is an apocalyptic number.

66799034 is a deficient number, since it is larger than the sum of its proper divisors (33399520).

66799034 is a wasteful number, since it uses less digits than its factorization.

66799034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33399519.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 66799034 is about 8173.0676003567. The cubic root of 66799034 is about 405.7483172420.

The spelling of 66799034 in words is "sixty-six million, seven hundred ninety-nine thousand, thirty-four".