656201656032 has 96 divisors (see below), whose sum is σ = 1935685237248. Its totient is φ = 193129575936.

The previous prime is 656201656031. The next prime is 656201656037. The reversal of 656201656032 is 230656102656.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×656201656032² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656201656031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11401788 + ... + 11459195.

It is an arithmetic number, because the mean of its divisors is an integer number (20163387888).

Almost surely, 2^656201656032 is an apocalyptic number.

It is an amenable number.

656201656032 is an abundant number, since it is smaller than the sum of its proper divisors (1279483581216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656201656032 is a wasteful number, since it uses less digits than its factorization.

656201656032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22861032 (or 22861024 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 656201656032 its reverse (230656102656), we get a palindrome (886857758688).

The spelling of 656201656032 in words is "six hundred fifty-six billion, two hundred one million, six hundred fifty-six thousand, thirty-two".