1156055510665 has 24 divisors (see below), whose sum is σ = 1528514835264. Its totient is φ = 832442808000.

The previous prime is 1156055510611. The next prime is 1156055510677. The reversal of 1156055510665 is 5660155506511.

It is a happy number.

It is not a de Polignac number, because 1156055510665 - 2⁷ = 1156055510537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469197 + ... + 1591306.

It is an arithmetic number, because the mean of its divisors is an integer number (63688118136).

Almost surely, 2^{1156055510665} is an apocalyptic number.

It is an amenable number.

1156055510665 is a deficient number, since it is larger than the sum of its proper divisors (372459324599).

1156055510665 is a wasteful number, since it uses less digits than its factorization.

1156055510665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060721 (or 2060620 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 1156055510665 in words is "one trillion, one hundred fifty-six billion, fifty-five million, five hundred ten thousand, six hundred sixty-five".