1866050605104 has 40 divisors (see below), whose sum is σ = 5509292263680. Its totient is φ = 533157315648.

The previous prime is 1866050605103. The next prime is 1866050605163. The reversal of 1866050605104 is 4015060506681.

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

It is not an unprimeable number, because it can be changed into a prime (1866050605103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2776860684 + ... + 2776861355.

It is an arithmetic number, because the mean of its divisors is an integer number (137732306592).

Almost surely, 2^{1866050605104} is an apocalyptic number.

1866050605104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1866050605104 is an abundant number, since it is smaller than the sum of its proper divisors (3643241658576).

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

1866050605104 is a wasteful number, since it uses less digits than its factorization.

1866050605104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553722057 (or 5553722051 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 1866050605104 in words is "one trillion, eight hundred sixty-six billion, fifty million, six hundred five thousand, one hundred four".