66460099 has 4 divisors (see below), whose sum is σ = 66967560. Its totient is φ = 65952640.

The previous prime is 66460091. The next prime is 66460111. The reversal of 66460099 is 99006466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66460099 - 2³ = 66460091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66460091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253534 + ... + 253795.

It is an arithmetic number, because the mean of its divisors is an integer number (16741890).

Almost surely, 2^66460099 is an apocalyptic number.

66460099 is a deficient number, since it is larger than the sum of its proper divisors (507461).

66460099 is a wasteful number, since it uses less digits than its factorization.

66460099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507460.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 66460099 is about 8152.3063607791. The cubic root of 66460099 is about 405.0609043193.

The spelling of 66460099 in words is "sixty-six million, four hundred sixty thousand, ninety-nine".