167220998899776 has 168 divisors, whose sum is σ = 487185345249408. Its totient is φ = 54824416128000.

The previous prime is 167220998899733. The next prime is 167220998899841. The reversal of 167220998899776 is 677998899022761.

It is a happy number.

167220998899776 is a `hidden beast` number, since 167 + 2 + 209 + 98 + 8 + 9 + 97 + 76 = 666.

It is a super-4 number, since 4×167220998899776⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

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, 1077578671 + ... + 1077733841.

Almost surely, 2^{167220998899776} is an apocalyptic number.

167220998899776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 167220998899776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243592672624704).

167220998899776 is an abundant number, since it is smaller than the sum of its proper divisors (319964346349632).

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

167220998899776 is a wasteful number, since it uses less digits than its factorization.

167220998899776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185921 (or 185908 counting only the distinct ones).

The product of its (nonzero) digits is 20739898368, while the sum is 90.

The spelling of 167220998899776 in words is "one hundred sixty-seven trillion, two hundred twenty billion, nine hundred ninety-eight million, eight hundred ninety-nine thousand, seven hundred seventy-six".