16662123425200 has 60 divisors (see below), whose sum is σ = 43669910770488. Its totient is φ = 6058953971200.

The previous prime is 16662123425173. The next prime is 16662123425281. The reversal of 16662123425200 is 252432126661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1893418717 + ... + 1893427516.

Almost surely, 2^{16662123425200} is an apocalyptic number.

16662123425200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16662123425200 is an abundant number, since it is smaller than the sum of its proper divisors (27007787345288).

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

16662123425200 is a wasteful number, since it uses less digits than its factorization.

16662123425200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786846262 (or 3786846251 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 16662123425200 in words is "sixteen trillion, six hundred sixty-two billion, one hundred twenty-three million, four hundred twenty-five thousand, two hundred".