1232166978000 has 960 divisors, whose sum is σ = 5219737915392. Its totient is φ = 275055782400.

The previous prime is 1232166977869. The next prime is 1232166978019. The reversal of 1232166978000 is 8796612321.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 146281789 + ... + 146290211.

Almost surely, 2^{1232166978000} is an apocalyptic number.

1232166978000 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 1232166978000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2609868957696).

1232166978000 is an abundant number, since it is smaller than the sum of its proper divisors (3987570937392).

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

1232166978000 is an equidigital number, since it uses as much as digits as its factorization.

1232166978000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8511 (or 8483 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 1232166978000 in words is "one trillion, two hundred thirty-two billion, one hundred sixty-six million, nine hundred seventy-eight thousand".