66162072 has 16 divisors (see below), whose sum is σ = 165405240. Its totient is φ = 22054016.

The previous prime is 66162067. The next prime is 66162077. The reversal of 66162072 is 27026166.

It is an interprime number because it is at equal distance from previous prime (66162067) and next prime (66162077).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66162077) 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, 1378353 + ... + 1378400.

Almost surely, 2^66162072 is an apocalyptic number.

It is an amenable number.

66162072 is an abundant number, since it is smaller than the sum of its proper divisors (99243168).

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

66162072 is a wasteful number, since it uses less digits than its factorization.

66162072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756762 (or 2756758 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 66162072 is about 8134.0071305599. The cubic root of 66162072 is about 404.4545255262.

The spelling of 66162072 in words is "sixty-six million, one hundred sixty-two thousand, seventy-two".