4040211154561 has 16 divisors (see below), whose sum is σ = 4083203839680. Its totient is φ = 3997440987840.

The previous prime is 4040211154477. The next prime is 4040211154601. The reversal of 4040211154561 is 1654511120404.

It is a cyclic number.

It is not a de Polignac number, because 4040211154561 - 2¹¹ = 4040211152513 is a prime.

It is a super-2 number, since 2×4040211154561² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040211152561) 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, 47929431 + ... + 48013651.

It is an arithmetic number, because the mean of its divisors is an integer number (255200239980).

Almost surely, 2^{4040211154561} is an apocalyptic number.

It is an amenable number.

4040211154561 is a deficient number, since it is larger than the sum of its proper divisors (42992685119).

4040211154561 is a wasteful number, since it uses less digits than its factorization.

4040211154561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85536.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 4040211154561 its reverse (1654511120404), we get a palindrome (5694722274965).

The spelling of 4040211154561 in words is "four trillion, forty billion, two hundred eleven million, one hundred fifty-four thousand, five hundred sixty-one".