11651040005 has 16 divisors (see below), whose sum is σ = 15467096448. Its totient is φ = 8354136000.

The previous prime is 11651039993. The next prime is 11651040041. The reversal of 11651040005 is 50004015611.

It is not a de Polignac number, because 11651040005 - 2¹⁰ = 11651038981 is a prime.

It is a super-2 number, since 2×11651040005² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1487906 + ... + 1495715.

It is an arithmetic number, because the mean of its divisors is an integer number (966693528).

Almost surely, 2^11651040005 is an apocalyptic number.

It is an amenable number.

11651040005 is a deficient number, since it is larger than the sum of its proper divisors (3816056443).

11651040005 is a wasteful number, since it uses less digits than its factorization.

11651040005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983708.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 11651040005 its reverse (50004015611), we get a palindrome (61655055616).

The spelling of 11651040005 in words is "eleven billion, six hundred fifty-one million, forty thousand, five".