1117655651 has 6 divisors (see below), whose sum is σ = 1300130100. Its totient is φ = 957990516.

The previous prime is 1117655569. The next prime is 1117655657. The reversal of 1117655651 is 1565567111.

It is not a de Polignac number, because 1117655651 - 2³⁰ = 43913827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117655657) 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 5 ways as a sum of consecutive naturals, for example, 11404601 + ... + 11404698.

It is an arithmetic number, because the mean of its divisors is an integer number (216688350).

Almost surely, 2^1117655651 is an apocalyptic number.

1117655651 is a deficient number, since it is larger than the sum of its proper divisors (182474449).

1117655651 is an equidigital number, since it uses as much as digits as its factorization.

1117655651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22809313 (or 22809306 counting only the distinct ones).

The product of its digits is 31500, while the sum is 38.

The square root of 1117655651 is about 33431.3573011925. The cubic root of 1117655651 is about 1037.7737297964.

The spelling of 1117655651 in words is "one billion, one hundred seventeen million, six hundred fifty-five thousand, six hundred fifty-one".