20687101036236 has 48 divisors (see below), whose sum is σ = 53633470088800. Its totient is φ = 6895668822336.

The previous prime is 20687101036223. The next prime is 20687101036279. The reversal of 20687101036236 is 63263010178602.

20687101036236 is a `hidden beast` number, since 2 + 0 + 6 + 8 + 7 + 1 + 0 + 10 + 3 + 623 + 6 = 666.

It is a super-2 number, since 2×20687101036236² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20687101036191 and 20687101036200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45781986 + ... + 46231638.

Almost surely, 2^{20687101036236} is an apocalyptic number.

It is an amenable number.

20687101036236 is an abundant number, since it is smaller than the sum of its proper divisors (32946369052564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20687101036236 is a wasteful number, since it uses less digits than its factorization.

20687101036236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875655 (or 875647 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 20687101036236 in words is "twenty trillion, six hundred eighty-seven billion, one hundred one million, thirty-six thousand, two hundred thirty-six".