1866634104054 has 8 divisors (see below), whose sum is σ = 3733268208120. Its totient is φ = 622211368016.

The previous prime is 1866634104043. The next prime is 1866634104059. The reversal of 1866634104054 is 4504014366681.

It is a sphenic number, since it is the product of 3 distinct primes.

1866634104054 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1866634103994 and 1866634104012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1866634104059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155552841999 + ... + 155552842010.

It is an arithmetic number, because the mean of its divisors is an integer number (466658526015).

Almost surely, 2^{1866634104054} is an apocalyptic number.

1866634104054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1866634104054 is a wasteful number, since it uses less digits than its factorization.

1866634104054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311105684014.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 1866634104054 in words is "one trillion, eight hundred sixty-six billion, six hundred thirty-four million, one hundred four thousand, fifty-four".