166617222504000 has 224 divisors, whose sum is σ = 562964724955776. Its totient is φ = 43397973964800.

The previous prime is 166617222503917. The next prime is 166617222504017. The reversal of 166617222504000 is 405222716661.

It is a super-2 number, since 2×166617222504000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79693399 + ... + 81757398.

Almost surely, 2^{166617222504000} is an apocalyptic number.

166617222504000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166617222504000 is an abundant number, since it is smaller than the sum of its proper divisors (396347502451776).

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

166617222504000 is a wasteful number, since it uses less digits than its factorization.

166617222504000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161450870 (or 161450850 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 166617222504000 in words is "one hundred sixty-six trillion, six hundred seventeen billion, two hundred twenty-two million, five hundred four thousand".