1612200570666 has 64 divisors (see below), whose sum is σ = 3881110118400. Its totient is φ = 436145345856.

The previous prime is 1612200570641. The next prime is 1612200570703. The reversal of 1612200570666 is 6660750022161.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 900640 + ... + 2008868.

It is an arithmetic number, because the mean of its divisors is an integer number (60642345600).

Almost surely, 2^{1612200570666} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1612200570666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1940555059200).

1612200570666 is an abundant number, since it is smaller than the sum of its proper divisors (2268909547734).

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

1612200570666 is a wasteful number, since it uses less digits than its factorization.

1612200570666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110083.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 1612200570666 in words is "one trillion, six hundred twelve billion, two hundred million, five hundred seventy thousand, six hundred sixty-six".