1011641542044 has 72 divisors (see below), whose sum is σ = 2747248776720. Its totient is φ = 288896799744.

The previous prime is 1011641542001. The next prime is 1011641542049. The reversal of 1011641542044 is 4402451461101.

It is a happy number.

1011641542044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1011641541996 and 1011641542014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011641542049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 759502 + ... + 1612490.

It is an arithmetic number, because the mean of its divisors is an integer number (38156233010).

Almost surely, 2^{1011641542044} is an apocalyptic number.

1011641542044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1011641542044 is an abundant number, since it is smaller than the sum of its proper divisors (1735607234676).

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

1011641542044 is a wasteful number, since it uses less digits than its factorization.

1011641542044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855027 (or 855018 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 1011641542044 in words is "one trillion, eleven billion, six hundred forty-one million, five hundred forty-two thousand, forty-four".