201651246611152 has 20 divisors (see below), whose sum is σ = 420753081871780. Its totient is φ = 93069806128128.

The previous prime is 201651246611117. The next prime is 201651246611173. The reversal of 201651246611152 is 251116642156102.

It can be written as a sum of positive squares in 2 ways, for example, as 87809943524416 + 113841303086736 = 9370696^2 + 10669644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201651246611099 and 201651246611108.

It is a congruent number.

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, 484738573377 + ... + 484738573792.

It is an arithmetic number, because the mean of its divisors is an integer number (21037654093589).

Almost surely, 2^{201651246611152} is an apocalyptic number.

It is an amenable number.

201651246611152 is an abundant number, since it is smaller than the sum of its proper divisors (219101835260628).

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

201651246611152 is a wasteful number, since it uses less digits than its factorization.

201651246611152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969477147190 (or 969477147184 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

Adding to 201651246611152 its reverse (251116642156102), we get a palindrome (452767888767254).

The spelling of 201651246611152 in words is "two hundred one trillion, six hundred fifty-one billion, two hundred forty-six million, six hundred eleven thousand, one hundred fifty-two".