136643463564052 has 6 divisors (see below), whose sum is σ = 239126061237098. Its totient is φ = 68321731782024.

The previous prime is 136643463563963. The next prime is 136643463564061. The reversal of 136643463564052 is 250465364346631.

It can be written as a sum of positive squares in only one way, i.e., 82160700576516 + 54482762987536 = 9064254^2 + 7381244^2 .

It is a super-2 number, since 2×136643463564052² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17080432945503 + ... + 17080432945510.

Almost surely, 2^{136643463564052} is an apocalyptic number.

It is an amenable number.

136643463564052 is a deficient number, since it is larger than the sum of its proper divisors (102482597673046).

136643463564052 is a wasteful number, since it uses less digits than its factorization.

136643463564052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34160865891017 (or 34160865891015 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 58.

The spelling of 136643463564052 in words is "one hundred thirty-six trillion, six hundred forty-three billion, four hundred sixty-three million, five hundred sixty-four thousand, fifty-two".