40556211111 has 48 divisors (see below), whose sum is σ = 65632104160. Its totient is φ = 24605078400.

The previous prime is 40556211097. The next prime is 40556211139. The reversal of 40556211111 is 11111265504.

It is not a de Polignac number, because 40556211111 - 2¹⁵ = 40556178343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40556213111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1757931 + ... + 1780851.

Almost surely, 2^40556211111 is an apocalyptic number.

40556211111 is a deficient number, since it is larger than the sum of its proper divisors (25075893049).

40556211111 is a wasteful number, since it uses less digits than its factorization.

40556211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23085 (or 23008 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 40556211111 its reverse (11111265504), we get a palindrome (51667476615).

The spelling of 40556211111 in words is "forty billion, five hundred fifty-six million, two hundred eleven thousand, one hundred eleven".