66162957 has 8 divisors (see below), whose sum is σ = 100819776. Its totient is φ = 37807392.

The previous prime is 66162953. The next prime is 66162961. The reversal of 66162957 is 75926166.

66162957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66162953) and next prime (66162961).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66162957 - 2² = 66162953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66162953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1575288 + ... + 1575329.

It is an arithmetic number, because the mean of its divisors is an integer number (12602472).

Almost surely, 2^66162957 is an apocalyptic number.

It is an amenable number.

66162957 is a deficient number, since it is larger than the sum of its proper divisors (34656819).

66162957 is a wasteful number, since it uses less digits than its factorization.

66162957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150627.

The product of its digits is 136080, while the sum is 42.

The square root of 66162957 is about 8134.0615316089. The cubic root of 66162957 is about 404.4563288789.

The spelling of 66162957 in words is "sixty-six million, one hundred sixty-two thousand, nine hundred fifty-seven".