201240761016636 has 72 divisors (see below), whose sum is σ = 587579976036144. Its totient is φ = 57394869450240.

The previous prime is 201240761016629. The next prime is 201240761016667. The reversal of 201240761016636 is 636610167042102.

201240761016636 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 4 + 0 + 7 + 6 + 1 + 0 + 1 + 6 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 201240761016591 and 201240761016600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14946573855 + ... + 14946587318.

It is an arithmetic number, because the mean of its divisors is an integer number (8160833000502).

Almost surely, 2^{201240761016636} is an apocalyptic number.

It is an amenable number.

201240761016636 is an abundant number, since it is smaller than the sum of its proper divisors (386339215019508).

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

201240761016636 is a wasteful number, since it uses less digits than its factorization.

201240761016636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29893161211 (or 29893161206 counting only the distinct ones).

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

The spelling of 201240761016636 in words is "two hundred one trillion, two hundred forty billion, seven hundred sixty-one million, sixteen thousand, six hundred thirty-six".