8955656557 has 8 divisors (see below), whose sum is σ = 9245947392. Its totient is φ = 8665453200.

The previous prime is 8955656537. The next prime is 8955656581. The reversal of 8955656557 is 7556565598.

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 8955656557 - 2⁷ = 8955656429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8955656495 and 8955656504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8955656537) 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, 233832 + ... + 269422.

It is an arithmetic number, because the mean of its divisors is an integer number (1155743424).

Almost surely, 2^8955656557 is an apocalyptic number.

It is an amenable number.

8955656557 is a deficient number, since it is larger than the sum of its proper divisors (290290835).

8955656557 is a wasteful number, since it uses less digits than its factorization.

8955656557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43739.

The product of its digits is 56700000, while the sum is 61.

The square root of 8955656557 is about 94634.3307526397. The cubic root of 8955656557 is about 2076.6619718796.

The spelling of 8955656557 in words is "eight billion, nine hundred fifty-five million, six hundred fifty-six thousand, five hundred fifty-seven".