40343656697361 has 12 divisors (see below), whose sum is σ = 58406913776640. Its totient is φ = 26834505135480.

The previous prime is 40343656697327. The next prime is 40343656697381. The reversal of 40343656697361 is 16379665634304.

40343656697361 is a `hidden beast` number, since 4 + 0 + 3 + 4 + 3 + 6 + 566 + 9 + 7 + 3 + 61 = 666.

It is not a de Polignac number, because 40343656697361 - 2⁶ = 40343656697297 is a prime.

It is a super-2 number, since 2×40343656697361² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40343656697381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5105495505 + ... + 5105503406.

It is an arithmetic number, because the mean of its divisors is an integer number (4867242814720).

Almost surely, 2^{40343656697361} is an apocalyptic number.

It is an amenable number.

40343656697361 is a deficient number, since it is larger than the sum of its proper divisors (18063257079279).

40343656697361 is a wasteful number, since it uses less digits than its factorization.

40343656697361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10210999356 (or 10210999353 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 63.

The spelling of 40343656697361 in words is "forty trillion, three hundred forty-three billion, six hundred fifty-six million, six hundred ninety-seven thousand, three hundred sixty-one".