66462012 has 24 divisors (see below), whose sum is σ = 172309200. Its totient is φ = 22153968.

The previous prime is 66461963. The next prime is 66462013. The reversal of 66462012 is 21026466.

It is a happy number.

66462012 is a `hidden beast` number, since 6 + 646 + 2 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66462013) 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, 307587 + ... + 307802.

It is an arithmetic number, because the mean of its divisors is an integer number (7179550).

Almost surely, 2^66462012 is an apocalyptic number.

It is an amenable number.

66462012 is an abundant number, since it is smaller than the sum of its proper divisors (105847188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66462012 is a wasteful number, since it uses less digits than its factorization.

66462012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615402 (or 615394 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 66462012 is about 8152.4236886953. The cubic root of 66462012 is about 405.0647907318.

Adding to 66462012 its reverse (21026466), we get a palindrome (87488478).

The spelling of 66462012 in words is "sixty-six million, four hundred sixty-two thousand, twelve".