1980545996232 has 128 divisors (see below), whose sum is σ = 5525584473600. Its totient is φ = 657299833344.

The previous prime is 1980545996189. The next prime is 1980545996263. The reversal of 1980545996232 is 2326995450891.

1980545996232 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 5 + 4 + 599 + 6 + 2 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1980545996232.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48890578 + ... + 48931070.

It is an arithmetic number, because the mean of its divisors is an integer number (43168628700).

Almost surely, 2^{1980545996232} is an apocalyptic number.

1980545996232 is a gapful number since it is divisible by the number (12) 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 1980545996232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2762792236800).

1980545996232 is an abundant number, since it is smaller than the sum of its proper divisors (3545038477368).

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

1980545996232 is a wasteful number, since it uses less digits than its factorization.

1980545996232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41492 (or 41482 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 63.

The spelling of 1980545996232 in words is "one trillion, nine hundred eighty billion, five hundred forty-five million, nine hundred ninety-six thousand, two hundred thirty-two".