66926498 has 4 divisors (see below), whose sum is σ = 100389750. Its totient is φ = 33463248.

The previous prime is 66926491. The next prime is 66926507. The reversal of 66926498 is 89462966.

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., 59706529 + 7219969 = 7727^2 + 2687^2 .

It is a super-2 number, since 2×66926498² = 8958312269088008, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66926491) by changing a digit.

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, 16731623 + ... + 16731626.

Almost surely, 2^66926498 is an apocalyptic number.

66926498 is a deficient number, since it is larger than the sum of its proper divisors (33463252).

66926498 is a wasteful number, since it uses less digits than its factorization.

66926498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33463251.

The product of its digits is 1119744, while the sum is 50.

The square root of 66926498 is about 8180.8616905556. The cubic root of 66926498 is about 406.0062323616.

The spelling of 66926498 in words is "sixty-six million, nine hundred twenty-six thousand, four hundred ninety-eight".