66160426 has 8 divisors (see below), whose sum is σ = 102662820. Its totient is φ = 31939488.

The previous prime is 66160399. The next prime is 66160433. The reversal of 66160426 is 62406166.

It can be written as a sum of positive squares in 2 ways, for example, as 63441225 + 2719201 = 7965^2 + 1649^2 .

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

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, 570291 + ... + 570406.

Almost surely, 2^66160426 is an apocalyptic number.

66160426 is a deficient number, since it is larger than the sum of its proper divisors (36502394).

66160426 is a wasteful number, since it uses less digits than its factorization.

66160426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140728.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66160426 is about 8133.9059497882. The cubic root of 66160426 is about 404.4511714511.

The spelling of 66160426 in words is "sixty-six million, one hundred sixty thousand, four hundred twenty-six".