201510201996 has 36 divisors (see below), whose sum is σ = 509703269712. Its totient is φ = 67126516704.

The previous prime is 201510201961. The next prime is 201510202001. The reversal of 201510201996 is 699102015102.

201510201996 is a `hidden beast` number, since 20 + 1 + 510 + 20 + 19 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×201510201996³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 201510201996.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1758291 + ... + 1869386.

Almost surely, 2^201510201996 is an apocalyptic number.

It is an amenable number.

201510201996 is an abundant number, since it is smaller than the sum of its proper divisors (308193067716).

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

201510201996 is a wasteful number, since it uses less digits than its factorization.

201510201996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629230 (or 3629225 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The spelling of 201510201996 in words is "two hundred one billion, five hundred ten million, two hundred one thousand, nine hundred ninety-six".