20170350355372 has 24 divisors (see below), whose sum is σ = 40395288980480. Its totient is φ = 8632738380240.

The previous prime is 20170350355369. The next prime is 20170350355391. The reversal of 20170350355372 is 27355305307102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487374204 + ... + 487415587.

Almost surely, 2^{20170350355372} is an apocalyptic number.

It is an amenable number.

20170350355372 is an abundant number, since it is smaller than the sum of its proper divisors (20224938625108).

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

20170350355372 is a wasteful number, since it uses less digits than its factorization.

20170350355372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974790541 (or 974790539 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 43.

The spelling of 20170350355372 in words is "twenty trillion, one hundred seventy billion, three hundred fifty million, three hundred fifty-five thousand, three hundred seventy-two".