16466851917140 has 48 divisors (see below), whose sum is σ = 34665297891840. Its totient is φ = 6570571779840.

The previous prime is 16466851917049. The next prime is 16466851917149. The reversal of 16466851917140 is 4171915866461.

It is a super-2 number, since 2×16466851917140² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16466851917140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16466851917149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65723144 + ... + 65973216.

It is an arithmetic number, because the mean of its divisors is an integer number (722193706080).

Almost surely, 2^{16466851917140} is an apocalyptic number.

16466851917140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16466851917140 is an abundant number, since it is smaller than the sum of its proper divisors (18198445974700).

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

16466851917140 is a wasteful number, since it uses less digits than its factorization.

16466851917140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258152 (or 258150 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 16466851917140 in words is "sixteen trillion, four hundred sixty-six billion, eight hundred fifty-one million, nine hundred seventeen thousand, one hundred forty".