20135147407216 has 80 divisors (see below), whose sum is σ = 40212154810944. Its totient is φ = 9759827331072.

The previous prime is 20135147407211. The next prime is 20135147407259. The reversal of 20135147407216 is 61270474153102.

It is a super-2 number, since 2×20135147407216² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135147407211) 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, 436719621 + ... + 436765723.

Almost surely, 2^{20135147407216} is an apocalyptic number.

It is an amenable number.

20135147407216 is a deficient number, since it is larger than the sum of its proper divisors (20077007403728).

20135147407216 is a wasteful number, since it uses less digits than its factorization.

20135147407216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48818 (or 48812 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 20135147407216 in words is "twenty trillion, one hundred thirty-five billion, one hundred forty-seven million, four hundred seven thousand, two hundred sixteen".