11451551161412 has 6 divisors (see below), whose sum is σ = 20040214532478. Its totient is φ = 5725775580704.

The previous prime is 11451551161373. The next prime is 11451551161429. The reversal of 11451551161412 is 21416115515411.

It can be written as a sum of positive squares in only one way, i.e., 5971298253376 + 5480252908036 = 2443624^2 + 2340994^2 .

It is a super-2 number, since 2×11451551161412² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1431443895173 + ... + 1431443895180.

It is an arithmetic number, because the mean of its divisors is an integer number (3340035755413).

Almost surely, 2^{11451551161412} is an apocalyptic number.

It is an amenable number.

11451551161412 is a deficient number, since it is larger than the sum of its proper divisors (8588663371066).

11451551161412 is a wasteful number, since it uses less digits than its factorization.

11451551161412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862887790357 (or 2862887790355 counting only the distinct ones).

The product of its digits is 24000, while the sum is 38.

Adding to 11451551161412 its reverse (21416115515411), we get a palindrome (32867666676823).

The spelling of 11451551161412 in words is "eleven trillion, four hundred fifty-one billion, five hundred fifty-one million, one hundred sixty-one thousand, four hundred twelve".