4016665401405 has 16 divisors (see below), whose sum is σ = 6445185297984. Its totient is φ = 2136047995520.

The previous prime is 4016665401403. The next prime is 4016665401449. The reversal of 4016665401405 is 5041045666104.

It is a happy number.

It is not a de Polignac number, because 4016665401405 - 2¹ = 4016665401403 is a prime.

It is a super-2 number, since 2×4016665401405² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4016665401403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385841616 + ... + 385852025.

It is an arithmetic number, because the mean of its divisors is an integer number (402824081124).

Almost surely, 2^{4016665401405} is an apocalyptic number.

It is an amenable number.

4016665401405 is a deficient number, since it is larger than the sum of its proper divisors (2428519896579).

4016665401405 is a wasteful number, since it uses less digits than its factorization.

4016665401405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771693996.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 4016665401405 in words is "four trillion, sixteen billion, six hundred sixty-five million, four hundred one thousand, four hundred five".