64120166 has 8 divisors (see below), whose sum is σ = 104923944. Its totient is φ = 29145520.

The previous prime is 64120129. The next prime is 64120249. The reversal of 64120166 is 66102146.

It is a happy number.

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

It is a super-2 number, since 2×64120166² = 8222791375735112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1457255 + ... + 1457298.

It is an arithmetic number, because the mean of its divisors is an integer number (13115493).

Almost surely, 2^64120166 is an apocalyptic number.

64120166 is a deficient number, since it is larger than the sum of its proper divisors (40803778).

64120166 is a wasteful number, since it uses less digits than its factorization.

64120166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914566.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 64120166 is about 8007.5068529474. The cubic root of 64120166 is about 400.2501893140.

It can be divided in two parts, 6 and 4120166, that multiplied together give a triangular number (24720996 = T₇₀₃₁).

The spelling of 64120166 in words is "sixty-four million, one hundred twenty thousand, one hundred sixty-six".