66763334 has 16 divisors (see below), whose sum is σ = 111915216. Its totient is φ = 29606400.

The previous prime is 66763331. The next prime is 66763337. The reversal of 66763334 is 43336766.

It is an interprime number because it is at equal distance from previous prime (66763331) and next prime (66763337).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66763331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36107 + ... + 37910.

It is an arithmetic number, because the mean of its divisors is an integer number (6994701).

Almost surely, 2^66763334 is an apocalyptic number.

66763334 is a deficient number, since it is larger than the sum of its proper divisors (45151882).

66763334 is a wasteful number, since it uses less digits than its factorization.

66763334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74071.

The product of its digits is 163296, while the sum is 38.

The square root of 66763334 is about 8170.8833059835. The cubic root of 66763334 is about 405.6760218044.

The spelling of 66763334 in words is "sixty-six million, seven hundred sixty-three thousand, three hundred thirty-four".