1867670400660 has 192 divisors, whose sum is σ = 5580474117120. Its totient is φ = 465358003200.

The previous prime is 1867670400551. The next prime is 1867670400697. The reversal of 1867670400660 is 660040767681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56850199 + ... + 56883041.

It is an arithmetic number, because the mean of its divisors is an integer number (29064969360).

Almost surely, 2^{1867670400660} is an apocalyptic number.

1867670400660 is a gapful number since it is divisible by the number (10) 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 1867670400660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2790237058560).

1867670400660 is an abundant number, since it is smaller than the sum of its proper divisors (3712803716460).

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

1867670400660 is a wasteful number, since it uses less digits than its factorization.

1867670400660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33558 (or 33556 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 1867670400660 in words is "one trillion, eight hundred sixty-seven billion, six hundred seventy million, four hundred thousand, six hundred sixty".