16611466126440 has 128 divisors (see below), whose sum is σ = 50800884203520. Its totient is φ = 4344467769600.

The previous prime is 16611466126439. The next prime is 16611466126481. The reversal of 16611466126440 is 4462166411661.

It is a happy number.

It is a super-3 number, since 3×16611466126440³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16611466126440.

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, 3476614 + ... + 6731253.

It is an arithmetic number, because the mean of its divisors is an integer number (396881907840).

Almost surely, 2^{16611466126440} is an apocalyptic number.

16611466126440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16611466126440 is an abundant number, since it is smaller than the sum of its proper divisors (34189418077080).

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

16611466126440 is a wasteful number, since it uses less digits than its factorization.

16611466126440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10208143 (or 10208139 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 16611466126440 in words is "sixteen trillion, six hundred eleven billion, four hundred sixty-six million, one hundred twenty-six thousand, four hundred forty".