1406452420066 has 16 divisors (see below), whose sum is σ = 2237648768856. Its totient is φ = 660712882176.

The previous prime is 1406452420031. The next prime is 1406452420133. The reversal of 1406452420066 is 6600242546041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1218981605625 + 187470814441 = 1104075^2 + 432979^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35826351 + ... + 35865586.

Almost surely, 2^{1406452420066} is an apocalyptic number.

1406452420066 is a deficient number, since it is larger than the sum of its proper divisors (831196348790).

1406452420066 is a wasteful number, since it uses less digits than its factorization.

1406452420066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71692533.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 1406452420066 in words is "one trillion, four hundred six billion, four hundred fifty-two million, four hundred twenty thousand, sixty-six".