1151091344544 has 48 divisors (see below), whose sum is σ = 3180647141280. Its totient is φ = 363502529280.

The previous prime is 1151091344521. The next prime is 1151091344569. The reversal of 1151091344544 is 4454431901511.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1151091344544² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1151091344496 and 1151091344505.

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, 315538567 + ... + 315542214.

It is an arithmetic number, because the mean of its divisors is an integer number (66263482110).

Almost surely, 2^{1151091344544} is an apocalyptic number.

It is an amenable number.

1151091344544 is an abundant number, since it is smaller than the sum of its proper divisors (2029555796736).

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

1151091344544 is a wasteful number, since it uses less digits than its factorization.

1151091344544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631080813 (or 631080805 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 1151091344544 in words is "one trillion, one hundred fifty-one billion, ninety-one million, three hundred forty-four thousand, five hundred forty-four".