16612035641856 has 1120 divisors, whose sum is σ = 54880623629568. Its totient is φ = 4999731609600.

The previous prime is 16612035641801. The next prime is 16612035641917. The reversal of 16612035641856 is 65814653021661.

16612035641856 is a `hidden beast` number, since 1 + 6 + 6 + 1 + 20 + 3 + 564 + 1 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 15805932531 + ... + 15805933581.

Almost surely, 2^{16612035641856} is an apocalyptic number.

16612035641856 is a gapful number since it is divisible by the number (16) 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 16612035641856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27440311814784).

16612035641856 is an abundant number, since it is smaller than the sum of its proper divisors (38268587987712).

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

16612035641856 is an equidigital number, since it uses as much as digits as its factorization.

16612035641856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1173 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 16612035641856 in words is "sixteen trillion, six hundred twelve billion, thirty-five million, six hundred forty-one thousand, eight hundred fifty-six".