11944991632020 has 96 divisors (see below), whose sum is σ = 33492815677440. Its totient is φ = 3180873400320.

The previous prime is 11944991632009. The next prime is 11944991632027. The reversal of 11944991632020 is 2023619944911.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11944991632027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124310314 + ... + 124406366.

It is an arithmetic number, because the mean of its divisors is an integer number (348883496640).

Almost surely, 2^{11944991632020} is an apocalyptic number.

11944991632020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11944991632020 is an abundant number, since it is smaller than the sum of its proper divisors (21547824045420).

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

11944991632020 is a wasteful number, since it uses less digits than its factorization.

11944991632020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98945 (or 98943 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 11944991632020 in words is "eleven trillion, nine hundred forty-four billion, nine hundred ninety-one million, six hundred thirty-two thousand, twenty".