1405599706081 has 8 divisors (see below), whose sum is σ = 1481071673600. Its totient is φ = 1330277042160.

The previous prime is 1405599706013. The next prime is 1405599706117. The reversal of 1405599706081 is 1806079955041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1405599706081 - 2³¹ = 1403452222433 is a prime.

It is a super-2 number, since 2×1405599706081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405599707081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37306566 + ... + 37344223.

It is an arithmetic number, because the mean of its divisors is an integer number (185133959200).

Almost surely, 2^{1405599706081} is an apocalyptic number.

It is an amenable number.

1405599706081 is a deficient number, since it is larger than the sum of its proper divisors (75471967519).

1405599706081 is an equidigital number, since it uses as much as digits as its factorization.

1405599706081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74651799.

The product of its (nonzero) digits is 2721600, while the sum is 55.

The spelling of 1405599706081 in words is "one trillion, four hundred five billion, five hundred ninety-nine million, seven hundred six thousand, eighty-one".