66152170 has 16 divisors (see below), whose sum is σ = 136084608. Its totient is φ = 22680720.

The previous prime is 66152159. The next prime is 66152179. The reversal of 66152170 is 7125166.

It is a super-2 number, since 2×66152170² = 8752219191417800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66152179) 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, 472446 + ... + 472585.

It is an arithmetic number, because the mean of its divisors is an integer number (8505288).

Almost surely, 2^66152170 is an apocalyptic number.

66152170 is an abundant number, since it is smaller than the sum of its proper divisors (69932438).

66152170 is a wasteful number, since it uses less digits than its factorization.

66152170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945045.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 66152170 is about 8133.3984287013. The cubic root of 66152170 is about 404.4343472558.

The spelling of 66152170 in words is "sixty-six million, one hundred fifty-two thousand, one hundred seventy".