406628062066 has 4 divisors (see below), whose sum is σ = 609942093102. Its totient is φ = 203314031032.

The previous prime is 406628062033. The next prime is 406628062081. The reversal of 406628062066 is 660260826604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 395596971225 + 11031090841 = 628965^2 + 105029^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101657015515 + ... + 101657015518.

Almost surely, 2^406628062066 is an apocalyptic number.

406628062066 is a deficient number, since it is larger than the sum of its proper divisors (203314031036).

406628062066 is a wasteful number, since it uses less digits than its factorization.

406628062066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203314031035.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 406628062066 in words is "four hundred six billion, six hundred twenty-eight million, sixty-two thousand, sixty-six".