1087011611005 has 16 divisors (see below), whose sum is σ = 1305679402944. Its totient is φ = 868766019840.

The previous prime is 1087011611003. The next prime is 1087011611011. The reversal of 1087011611005 is 5001161107801.

It is not a de Polignac number, because 1087011611005 - 2¹ = 1087011611003 is a prime.

It is a super-2 number, since 2×1087011611005² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087011611003) 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, 25657690 + ... + 25700020.

It is an arithmetic number, because the mean of its divisors is an integer number (81604962684).

Almost surely, 2^{1087011611005} is an apocalyptic number.

It is an amenable number.

1087011611005 is a deficient number, since it is larger than the sum of its proper divisors (218667791939).

1087011611005 is a wasteful number, since it uses less digits than its factorization.

1087011611005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47196.

The product of its (nonzero) digits is 1680, while the sum is 31.

Adding to 1087011611005 its reverse (5001161107801), we get a palindrome (6088172718806).

The spelling of 1087011611005 in words is "one trillion, eighty-seven billion, eleven million, six hundred eleven thousand, five".