201528776765012 has 12 divisors (see below), whose sum is σ = 358652907802560. Its totient is φ = 99056517392856.

The previous prime is 201528776764981. The next prime is 201528776765021. The reversal of 201528776765012 is 210567677825102.

It is a super-2 number, since 2×201528776765012² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426967747148 + ... + 426967747619.

It is an arithmetic number, because the mean of its divisors is an integer number (29887742316880).

Almost surely, 2^{201528776765012} is an apocalyptic number.

It is an amenable number.

201528776765012 is a deficient number, since it is larger than the sum of its proper divisors (157124131037548).

201528776765012 is a wasteful number, since it uses less digits than its factorization.

201528776765012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853935494830 (or 853935494828 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 59.

The spelling of 201528776765012 in words is "two hundred one trillion, five hundred twenty-eight billion, seven hundred seventy-six million, seven hundred sixty-five thousand, twelve".