66163460 has 24 divisors (see below), whose sum is σ = 151574976. Its totient is φ = 24059360.

The previous prime is 66163459. The next prime is 66163469. The reversal of 66163460 is 6436166.

It is not an unprimeable number, because it can be changed into a prime (66163469) 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, 150152 + ... + 150591.

It is an arithmetic number, because the mean of its divisors is an integer number (6315624).

Almost surely, 2^66163460 is an apocalyptic number.

It is an amenable number.

66163460 is an abundant number, since it is smaller than the sum of its proper divisors (85411516).

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

66163460 is a wasteful number, since it uses less digits than its factorization.

66163460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300763 (or 300761 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 66163460 is about 8134.0924509130. The cubic root of 66163460 is about 404.4573538281.

The spelling of 66163460 in words is "sixty-six million, one hundred sixty-three thousand, four hundred sixty".