656201623063 has 16 divisors (see below), whose sum is σ = 755285762560. Its totient is φ = 558456444000.

The previous prime is 656201623057. The next prime is 656201623079. The reversal of 656201623063 is 360326102656.

It is not a de Polignac number, because 656201623063 - 2³⁷ = 518762669591 is a prime.

It is a super-2 number, since 2×656201623063² (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 (656201623463) 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, 1991668 + ... + 2297638.

It is an arithmetic number, because the mean of its divisors is an integer number (47205360160).

Almost surely, 2^656201623063 is an apocalyptic number.

656201623063 is a deficient number, since it is larger than the sum of its proper divisors (99084139497).

656201623063 is a wasteful number, since it uses less digits than its factorization.

656201623063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308158.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 656201623063 in words is "six hundred fifty-six billion, two hundred one million, six hundred twenty-three thousand, sixty-three".