1155106555651 has 8 divisors (see below), whose sum is σ = 1172385362960. Its totient is φ = 1137828878208.

The previous prime is 1155106555621. The next prime is 1155106555721. The reversal of 1155106555651 is 1565556015511.

It is a happy number.

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 1155106555651 - 2⁵ = 1155106555619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155106555601) 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, 1903015 + ... + 2435503.

It is an arithmetic number, because the mean of its divisors is an integer number (146548170370).

Almost surely, 2^{1155106555651} is an apocalyptic number.

1155106555651 is a deficient number, since it is larger than the sum of its proper divisors (17278807309).

1155106555651 is an equidigital number, since it uses as much as digits as its factorization.

1155106555651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564933.

The product of its (nonzero) digits is 562500, while the sum is 46.

The spelling of 1155106555651 in words is "one trillion, one hundred fifty-five billion, one hundred six million, five hundred fifty-five thousand, six hundred fifty-one".