2640410647161 has 16 divisors (see below), whose sum is σ = 4030337224704. Its totient is φ = 1506235708944.

The previous prime is 2640410647141. The next prime is 2640410647201. The reversal of 2640410647161 is 1617460140462.

It is not a de Polignac number, because 2640410647161 - 2²⁶ = 2640343538297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2640410647141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107086345 + ... + 107110998.

It is an arithmetic number, because the mean of its divisors is an integer number (251896076544).

Almost surely, 2^{2640410647161} is an apocalyptic number.

2640410647161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2640410647161 is a deficient number, since it is larger than the sum of its proper divisors (1389926577543).

2640410647161 is a wasteful number, since it uses less digits than its factorization.

2640410647161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214197940.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 2640410647161 in words is "two trillion, six hundred forty billion, four hundred ten million, six hundred forty-seven thousand, one hundred sixty-one".