320167154391672 has 192 divisors, whose sum is σ = 956375997696000. Its totient is φ = 87404895901440.

The previous prime is 320167154391631. The next prime is 320167154391713. The reversal of 320167154391672 is 276193451761023.

It is an interprime number because it is at equal distance from previous prime (320167154391631) and next prime (320167154391713).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27577954 + ... + 37428302.

It is an arithmetic number, because the mean of its divisors is an integer number (4981124988000).

Almost surely, 2^{320167154391672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320167154391672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478187998848000).

320167154391672 is an abundant number, since it is smaller than the sum of its proper divisors (636208843304328).

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

320167154391672 is a wasteful number, since it uses less digits than its factorization.

320167154391672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9850554 (or 9850471 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 320167154391672 in words is "three hundred twenty trillion, one hundred sixty-seven billion, one hundred fifty-four million, three hundred ninety-one thousand, six hundred seventy-two".