1156655566001 has 8 divisors (see below), whose sum is σ = 1285810654464. Its totient is φ = 1033240703760.

The previous prime is 1156655565997. The next prime is 1156655566061. The reversal of 1156655566001 is 1006655566511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1156655566001 - 2² = 1156655565997 is a prime.

It is a super-2 number, since 2×1156655566001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1156655566061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435056131 + ... + 1435056936.

It is an arithmetic number, because the mean of its divisors is an integer number (160726331808).

Almost surely, 2^{1156655566001} is an apocalyptic number.

It is an amenable number.

1156655566001 is a deficient number, since it is larger than the sum of its proper divisors (129155088463).

1156655566001 is a wasteful number, since it uses less digits than its factorization.

1156655566001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870113111.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 1156655566001 in words is "one trillion, one hundred fifty-six billion, six hundred fifty-five million, five hundred sixty-six thousand, one".