663613112533037 has 4 divisors (see below), whose sum is σ = 664886842116156. Its totient is φ = 662339382949920.

The previous prime is 663613112532961. The next prime is 663613112533043. The reversal of 663613112533037 is 730335211316366.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 483963964670761 + 179649147862276 = 21999181^2 + 13403326^2 .

It is a cyclic number.

It is not a de Polignac number, because 663613112533037 - 2¹⁸ = 663613112270893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663613112553037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636864790778 + ... + 636864791819.

It is an arithmetic number, because the mean of its divisors is an integer number (166221710529039).

Almost surely, 2^{663613112533037} is an apocalyptic number.

It is an amenable number.

663613112533037 is a deficient number, since it is larger than the sum of its proper divisors (1273729583119).

663613112533037 is a wasteful number, since it uses less digits than its factorization.

663613112533037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273729583118.

The product of its (nonzero) digits is 3674160, while the sum is 50.

The spelling of 663613112533037 in words is "six hundred sixty-three trillion, six hundred thirteen billion, one hundred twelve million, five hundred thirty-three thousand, thirty-seven".