16671561620600 has 48 divisors (see below), whose sum is σ = 39228385394520. Its totient is φ = 6588279766400.

The previous prime is 16671561620591. The next prime is 16671561620689. The reversal of 16671561620600 is 602616517661.

It is a congruent number.

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, 502138871 + ... + 502172070.

Almost surely, 2^{16671561620600} is an apocalyptic number.

16671561620600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16671561620600 is an abundant number, since it is smaller than the sum of its proper divisors (22556823773920).

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

16671561620600 is a wasteful number, since it uses less digits than its factorization.

16671561620600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004311040 (or 1004311031 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 16671561620600 in words is "sixteen trillion, six hundred seventy-one billion, five hundred sixty-one million, six hundred twenty thousand, six hundred".