19766696005136 has 20 divisors (see below), whose sum is σ = 38319238403964. Its totient is φ = 9877860288000.

The previous prime is 19766696005079. The next prime is 19766696005157. The reversal of 19766696005136 is 63150069666791.

It can be written as a sum of positive squares in 2 ways, for example, as 4114228062736 + 15652467942400 = 2028356^2 + 3956320^2 .

It is a super-4 number, since 4×19766696005136⁴ (a number of 54 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342952445 + ... + 343010076.

Almost surely, 2^{19766696005136} is an apocalyptic number.

19766696005136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19766696005136 is a deficient number, since it is larger than the sum of its proper divisors (18552542398828).

19766696005136 is a wasteful number, since it uses less digits than its factorization.

19766696005136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685964330 (or 685964324 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 65.

The spelling of 19766696005136 in words is "nineteen trillion, seven hundred sixty-six billion, six hundred ninety-six million, five thousand, one hundred thirty-six".