170320851372 has 48 divisors (see below), whose sum is σ = 468840200192. Its totient is φ = 47093322240.

The previous prime is 170320851367. The next prime is 170320851373. The reversal of 170320851372 is 273158023071.

It is a self number, because there is not a number n which added to its sum of digits gives 170320851372.

It is not an unprimeable number, because it can be changed into a prime (170320851373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32701093 + ... + 32706300.

Almost surely, 2^170320851372 is an apocalyptic number.

170320851372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

170320851372 is an abundant number, since it is smaller than the sum of its proper divisors (298519348820).

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

170320851372 is a wasteful number, since it uses less digits than its factorization.

170320851372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65407438 (or 65407436 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 170320851372 in words is "one hundred seventy billion, three hundred twenty million, eight hundred fifty-one thousand, three hundred seventy-two".