11451123043616 has 24 divisors (see below), whose sum is σ = 22637943729324. Its totient is φ = 5701804001280.

The previous prime is 11451123043553. The next prime is 11451123043697. The reversal of 11451123043616 is 61634032115411.

It can be written as a sum of positive squares in 2 ways, for example, as 9828199920016 + 1622923123600 = 3134996^2 + 1273940^2 .

It is a super-2 number, since 2×11451123043616² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11451123043616.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742414685 + ... + 742430108.

Almost surely, 2^{11451123043616} is an apocalyptic number.

11451123043616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11451123043616 is a deficient number, since it is larger than the sum of its proper divisors (11186820685708).

11451123043616 is a wasteful number, since it uses less digits than its factorization.

11451123043616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484845044 (or 1484845036 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 11451123043616 in words is "eleven trillion, four hundred fifty-one billion, one hundred twenty-three million, forty-three thousand, six hundred sixteen".