66736366 has 16 divisors (see below), whose sum is σ = 106899840. Its totient is φ = 31177440.

The previous prime is 66736361. The next prime is 66736393. The reversal of 66736366 is 66363766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66736361) 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, 16761 + ... + 20356.

It is an arithmetic number, because the mean of its divisors is an integer number (6681240).

Almost surely, 2^66736366 is an apocalyptic number.

66736366 is a deficient number, since it is larger than the sum of its proper divisors (40163474).

66736366 is a wasteful number, since it uses less digits than its factorization.

66736366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37179.

The product of its digits is 489888, while the sum is 43.

The square root of 66736366 is about 8169.2328893232. The cubic root of 66736366 is about 405.6213922960.

The spelling of 66736366 in words is "sixty-six million, seven hundred thirty-six thousand, three hundred sixty-six".