1153905091672 has 32 divisors (see below), whose sum is σ = 2219634330480. Its totient is φ = 562193049600.

The previous prime is 1153905091667. The next prime is 1153905091747. The reversal of 1153905091672 is 2761905093511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11854329 + ... + 11951272.

Almost surely, 2^{1153905091672} is an apocalyptic number.

It is an amenable number.

1153905091672 is a deficient number, since it is larger than the sum of its proper divisors (1065729238808).

1153905091672 is a wasteful number, since it uses less digits than its factorization.

1153905091672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23805763 (or 23805759 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 49.

The spelling of 1153905091672 in words is "one trillion, one hundred fifty-three billion, nine hundred five million, ninety-one thousand, six hundred seventy-two".