40401122465 has 32 divisors (see below), whose sum is σ = 55011889152. Its totient is φ = 28217592000.

The previous prime is 40401122453. The next prime is 40401122467. The reversal of 40401122465 is 56422110404.

It is not a de Polignac number, because 40401122465 - 2¹⁰ = 40401121441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40401122467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132914 + ... + 313796.

It is an arithmetic number, because the mean of its divisors is an integer number (1719121536).

Almost surely, 2^40401122465 is an apocalyptic number.

It is an amenable number.

40401122465 is a deficient number, since it is larger than the sum of its proper divisors (14610766687).

40401122465 is a wasteful number, since it uses less digits than its factorization.

40401122465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181061.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 40401122465 its reverse (56422110404), we get a palindrome (96823232869).

The spelling of 40401122465 in words is "forty billion, four hundred one million, one hundred twenty-two thousand, four hundred sixty-five".