946406066 has 4 divisors (see below), whose sum is σ = 1419609102. Its totient is φ = 473203032.

The previous prime is 946406051. The next prime is 946406077. The reversal of 946406066 is 660604649.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660604649 = 17 ⋅38859097.

It can be written as a sum of positive squares in only one way, i.e., 493950625 + 452455441 = 22225^2 + 21271^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236601515 + ... + 236601518.

Almost surely, 2^946406066 is an apocalyptic number.

946406066 is a deficient number, since it is larger than the sum of its proper divisors (473203036).

946406066 is a wasteful number, since it uses less digits than its factorization.

946406066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473203035.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 946406066 is about 30763.7134624544. The cubic root of 946406066 is about 981.8063539972.

The spelling of 946406066 in words is "nine hundred forty-six million, four hundred six thousand, sixty-six".