2640718156341 has 8 divisors (see below), whose sum is σ = 3522925663840. Its totient is φ = 1759494709872.

The previous prime is 2640718156333. The next prime is 2640718156381. The reversal of 2640718156341 is 1436518170462.

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

It is not a de Polignac number, because 2640718156341 - 2³ = 2640718156333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640718156331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246008995 + ... + 246019728.

It is an arithmetic number, because the mean of its divisors is an integer number (440365707980).

Almost surely, 2^{2640718156341} is an apocalyptic number.

It is an amenable number.

2640718156341 is a deficient number, since it is larger than the sum of its proper divisors (882207507499).

2640718156341 is a wasteful number, since it uses less digits than its factorization.

2640718156341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492030515.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 2640718156341 in words is "two trillion, six hundred forty billion, seven hundred eighteen million, one hundred fifty-six thousand, three hundred forty-one".