840736162566361 has 16 divisors (see below), whose sum is σ = 885097362385600. Its totient is φ = 796386160934208.

The previous prime is 840736162566299. The next prime is 840736162566457. The reversal of 840736162566361 is 163665261637048.

It is a cyclic number.

It is not a de Polignac number, because 840736162566361 - 2¹¹ = 840736162564313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 840736162566293 and 840736162566302.

It is not an unprimeable number, because it can be changed into a prime (840736162566161) 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, 8784431470 + ... + 8784527176.

It is an arithmetic number, because the mean of its divisors is an integer number (55318585149100).

Almost surely, 2^{840736162566361} is an apocalyptic number.

It is an amenable number.

840736162566361 is a deficient number, since it is larger than the sum of its proper divisors (44361199819239).

840736162566361 is a wasteful number, since it uses less digits than its factorization.

840736162566361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149368.

The product of its (nonzero) digits is 156764160, while the sum is 64.

The spelling of 840736162566361 in words is "eight hundred forty trillion, seven hundred thirty-six billion, one hundred sixty-two million, five hundred sixty-six thousand, three hundred sixty-one".