1206060661800 has 672 divisors, whose sum is σ = 4291328030880. Its totient is φ = 315011980800.

The previous prime is 1206060661769. The next prime is 1206060661829. The reversal of 1206060661800 is 81660606021.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 3233406414 + ... + 3233406786.

Almost surely, 2^{1206060661800} is an apocalyptic number.

1206060661800 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 1206060661800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2145664015440).

1206060661800 is an abundant number, since it is smaller than the sum of its proper divisors (3085267369080).

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

1206060661800 is a wasteful number, since it uses less digits than its factorization.

1206060661800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 1206060661800 in words is "one trillion, two hundred six billion, sixty million, six hundred sixty-one thousand, eight hundred".