655617011 has 6 divisors (see below), whose sum is σ = 762656580. Its totient is φ = 561957396.

The previous prime is 655616993. The next prime is 655617013. The reversal of 655617011 is 110716556.

It is a de Polignac number, because none of the positive numbers 2^k-655617011 is a prime.

It is a super-2 number, since 2×655617011² = 859667330225148242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655617013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6689921 + ... + 6690018.

It is an arithmetic number, because the mean of its divisors is an integer number (127109430).

Almost surely, 2^655617011 is an apocalyptic number.

655617011 is a deficient number, since it is larger than the sum of its proper divisors (107039569).

655617011 is a wasteful number, since it uses less digits than its factorization.

655617011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13379953 (or 13379946 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 655617011 is about 25605.0192540447. The cubic root of 655617011 is about 868.7271698640.

The spelling of 655617011 in words is "six hundred fifty-five million, six hundred seventeen thousand, eleven".