136022466659689 has 9 divisors (see below), whose sum is σ = 144494664820471. Its totient is φ = 128020958485600.

The previous prime is 136022466659659. The next prime is 136022466659701. The reversal of 136022466659689 is 986956664220631.

The square root of 136022466659689 is 11662867.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 105899844285225 + 30122622374464 = 10290765^2 + 5488408^2 .

It is not a de Polignac number, because 136022466659689 - 2⁷ = 136022466659561 is a prime.

It is a super-4 number, since 4×136022466659689⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136022466659659) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 197925714 + ... + 198611764.

Almost surely, 2^{136022466659689} is an apocalyptic number.

136022466659689 is the 11662867-th square number.

136022466659689 is the 5831434-th centered octagonal number.

It is an amenable number.

136022466659689 is a deficient number, since it is larger than the sum of its proper divisors (8472198160782).

136022466659689 is an frugal number, since it uses more digits than its factorization.

136022466659689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372136 (or 686068 counting only the distinct ones).

The product of its (nonzero) digits is 1209323520, while the sum is 73.

The spelling of 136022466659689 in words is "one hundred thirty-six trillion, twenty-two billion, four hundred sixty-six million, six hundred fifty-nine thousand, six hundred eighty-nine".