201081992951376 has 720 divisors, whose sum is σ = 603246094528896. Its totient is φ = 62508764178432.

The previous prime is 201081992951327. The next prime is 201081992951383. The reversal of 201081992951376 is 673159299180102.

201081992951376 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 8 + 1 + 99 + 29 + 513 + 7 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 165772458546 + ... + 165772459758.

Almost surely, 2^{201081992951376} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201081992951376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301623047264448).

201081992951376 is an abundant number, since it is smaller than the sum of its proper divisors (402164101577520).

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

201081992951376 is a wasteful number, since it uses less digits than its factorization.

201081992951376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 63.

The spelling of 201081992951376 in words is "two hundred one trillion, eighty-one billion, nine hundred ninety-two million, nine hundred fifty-one thousand, three hundred seventy-six".