1405402363161 has 12 divisors (see below), whose sum is σ = 2084891193892. Its totient is φ = 911612343456.

The previous prime is 1405402363139. The next prime is 1405402363163. The reversal of 1405402363161 is 1613632045041.

1405402363161 is a `hidden beast` number, since 1 + 4 + 0 + 540 + 23 + 6 + 31 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1146912483600 + 258489879561 = 1070940^2 + 508419^2 .

It is not a de Polignac number, because 1405402363161 - 2¹¹ = 1405402361113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405402363163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2110213426 + ... + 2110214091.

Almost surely, 2^{1405402363161} is an apocalyptic number.

It is an amenable number.

1405402363161 is a deficient number, since it is larger than the sum of its proper divisors (679488830731).

1405402363161 is a wasteful number, since it uses less digits than its factorization.

1405402363161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220427560 (or 4220427557 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 1405402363161 in words is "one trillion, four hundred five billion, four hundred two million, three hundred sixty-three thousand, one hundred sixty-one".