201020371670398 has 24 divisors (see below), whose sum is σ = 350761456770984. Its totient is φ = 86151238966800.

The previous prime is 201020371670347. The next prime is 201020371670401. The reversal of 201020371670398 is 893076173020102.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20938513 + ... + 28990723.

It is an arithmetic number, because the mean of its divisors is an integer number (14615060698791).

Almost surely, 2^{201020371670398} is an apocalyptic number.

201020371670398 is a deficient number, since it is larger than the sum of its proper divisors (149741085100586).

201020371670398 is a wasteful number, since it uses less digits than its factorization.

201020371670398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8306968 (or 8306961 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 201020371670398 in words is "two hundred one trillion, twenty billion, three hundred seventy-one million, six hundred seventy thousand, three hundred ninety-eight".