11451304155506 has 4 divisors (see below), whose sum is σ = 17176956233262. Its totient is φ = 5725652077752.

The previous prime is 11451304155479. The next prime is 11451304155539. The reversal of 11451304155506 is 60555140315411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9139490339281 + 2311813816225 = 3023159^2 + 1520465^2 .

It is a super-2 number, since 2×11451304155506² (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 (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2862826038875 + ... + 2862826038878.

Almost surely, 2^{11451304155506} is an apocalyptic number.

11451304155506 is a deficient number, since it is larger than the sum of its proper divisors (5725652077756).

11451304155506 is an equidigital number, since it uses as much as digits as its factorization.

11451304155506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5725652077755.

The product of its (nonzero) digits is 180000, while the sum is 41.

The spelling of 11451304155506 in words is "eleven trillion, four hundred fifty-one billion, three hundred four million, one hundred fifty-five thousand, five hundred six".