40561610611 has 16 divisors (see below), whose sum is σ = 41668992000. Its totient is φ = 39472887168.

The previous prime is 40561610603. The next prime is 40561610623. The reversal of 40561610611 is 11601616504.

It is a cyclic number.

It is not a de Polignac number, because 40561610611 - 2³ = 40561610603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40561610681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670091 + ... + 1694203.

It is an arithmetic number, because the mean of its divisors is an integer number (2604312000).

Almost surely, 2^40561610611 is an apocalyptic number.

40561610611 is a deficient number, since it is larger than the sum of its proper divisors (1107381389).

40561610611 is a wasteful number, since it uses less digits than its factorization.

40561610611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24498.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 40561610611 in words is "forty billion, five hundred sixty-one million, six hundred ten thousand, six hundred eleven".