1405420601606 has 24 divisors (see below), whose sum is σ = 2456848562976. Its totient is φ = 601209740880.

The previous prime is 1405420601603. The next prime is 1405420601693. The reversal of 1405420601606 is 6061060245041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405420601603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13201166 + ... + 13307201.

It is an arithmetic number, because the mean of its divisors is an integer number (102368690124).

Almost surely, 2^{1405420601606} is an apocalyptic number.

1405420601606 is a deficient number, since it is larger than the sum of its proper divisors (1051427961370).

1405420601606 is a wasteful number, since it uses less digits than its factorization.

1405420601606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26508924 (or 26508917 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 1405420601606 its reverse (6061060245041), we get a palindrome (7466480846647).

The spelling of 1405420601606 in words is "one trillion, four hundred five billion, four hundred twenty million, six hundred one thousand, six hundred six".