66536267 has 6 divisors (see below), whose sum is σ = 77399388. Its totient is φ = 57031044.

The previous prime is 66536243. The next prime is 66536291. The reversal of 66536267 is 76263566.

It is an interprime number because it is at equal distance from previous prime (66536243) and next prime (66536291).

It is not a de Polignac number, because 66536267 - 2¹² = 66532171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66536207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678893 + ... + 678990.

It is an arithmetic number, because the mean of its divisors is an integer number (12899898).

Almost surely, 2^66536267 is an apocalyptic number.

66536267 is a deficient number, since it is larger than the sum of its proper divisors (10863121).

66536267 is a wasteful number, since it uses less digits than its factorization.

66536267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357897 (or 1357890 counting only the distinct ones).

The product of its digits is 272160, while the sum is 41.

The square root of 66536267 is about 8156.9765844950. The cubic root of 66536267 is about 405.2155881094.

The spelling of 66536267 in words is "sixty-six million, five hundred thirty-six thousand, two hundred sixty-seven".