1125665464044 has 96 divisors (see below), whose sum is σ = 3058953230592. Its totient is φ = 321045331200.

The previous prime is 1125665464043. The next prime is 1125665464067. The reversal of 1125665464044 is 4404645665211.

It is a junction number, because it is equal to n+sod(n) for n = 1125665463984 and 1125665464002.

It is not an unprimeable number, because it can be changed into a prime (1125665464043) 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, 1801342 + ... + 2344389.

It is an arithmetic number, because the mean of its divisors is an integer number (31864096152).

Almost surely, 2^{1125665464044} is an apocalyptic number.

It is an amenable number.

1125665464044 is an abundant number, since it is smaller than the sum of its proper divisors (1933287766548).

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

1125665464044 is a wasteful number, since it uses less digits than its factorization.

1125665464044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145788 (or 4145764 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 1125665464044 in words is "one trillion, one hundred twenty-five billion, six hundred sixty-five million, four hundred sixty-four thousand, forty-four".