40656540333401 has 32 divisors (see below), whose sum is σ = 43531132579200. Its totient is φ = 37900336320000.

The previous prime is 40656540333391. The next prime is 40656540333427. The reversal of 40656540333401 is 10433304565604.

It is a cyclic number.

It is not a de Polignac number, because 40656540333401 - 2¹⁴ = 40656540317017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40656540333901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261596246 + ... + 261751616.

It is an arithmetic number, because the mean of its divisors is an integer number (1360347893100).

Almost surely, 2^{40656540333401} is an apocalyptic number.

40656540333401 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40656540333401 is a deficient number, since it is larger than the sum of its proper divisors (2874592245799).

40656540333401 is a wasteful number, since it uses less digits than its factorization.

40656540333401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157721.

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 40656540333401 in words is "forty trillion, six hundred fifty-six billion, five hundred forty million, three hundred thirty-three thousand, four hundred one".