2140406422665 has 32 divisors (see below), whose sum is σ = 3942454567680. Its totient is φ = 971329373184.

The previous prime is 2140406422657. The next prime is 2140406422697. The reversal of 2140406422665 is 5662246040412.

It is not a de Polignac number, because 2140406422665 - 2³ = 2140406422657 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 74382780 + ... + 74411549.

It is an arithmetic number, because the mean of its divisors is an integer number (123201705240).

Almost surely, 2^{2140406422665} is an apocalyptic number.

It is an amenable number.

2140406422665 is a deficient number, since it is larger than the sum of its proper divisors (1802048145015).

2140406422665 is a wasteful number, since it uses less digits than its factorization.

2140406422665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148794481.

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 2140406422665 in words is "two trillion, one hundred forty billion, four hundred six million, four hundred twenty-two thousand, six hundred sixty-five".