201968887680 has 192 divisors, whose sum is σ = 797055948000. Its totient is φ = 46164307968.

The previous prime is 201968887663. The next prime is 201968887693. The reversal of 201968887680 is 86788869102.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2464255 + ... + 2544894.

Almost surely, 2^201968887680 is an apocalyptic number.

201968887680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201968887680 is an abundant number, since it is smaller than the sum of its proper divisors (595087060320).

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

201968887680 is a wasteful number, since it uses less digits than its factorization.

201968887680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009181 (or 5009166 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 201968887680 in words is "two hundred one billion, nine hundred sixty-eight million, eight hundred eighty-seven thousand, six hundred eighty".