172666224462004 has 192 divisors, whose sum is σ = 393269666549760. Its totient is φ = 64415532994560.

The previous prime is 172666224461971. The next prime is 172666224462097. The reversal of 172666224462004 is 400264422666271.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1393947777 + ... + 1394071639.

It is an arithmetic number, because the mean of its divisors is an integer number (2048279513280).

Almost surely, 2^{172666224462004} is an apocalyptic number.

172666224462004 is a gapful number since it is divisible by the number (14) 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 172666224462004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196634833274880).

172666224462004 is an abundant number, since it is smaller than the sum of its proper divisors (220603442087756).

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

172666224462004 is a wasteful number, since it uses less digits than its factorization.

172666224462004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124830 (or 124828 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 52.

The spelling of 172666224462004 in words is "one hundred seventy-two trillion, six hundred sixty-six billion, two hundred twenty-four million, four hundred sixty-two thousand, four".