11450658551 has 12 divisors (see below), whose sum is σ = 11864417040. Its totient is φ = 11049030720.

The previous prime is 11450658523. The next prime is 11450658559. The reversal of 11450658551 is 15585605411.

It is a happy number.

It is not a de Polignac number, because 11450658551 - 2¹⁸ = 11450396407 is a prime.

It is a super-2 number, since 2×11450658551² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11450658499 and 11450658508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11450658559) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 120335 + ... + 193343.

It is an arithmetic number, because the mean of its divisors is an integer number (988701420).

Almost surely, 2^11450658551 is an apocalyptic number.

11450658551 is a deficient number, since it is larger than the sum of its proper divisors (413758489).

11450658551 is an frugal number, since it uses more digits than its factorization.

11450658551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73174 (or 73127 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 41.

The spelling of 11450658551 in words is "eleven billion, four hundred fifty million, six hundred fifty-eight thousand, five hundred fifty-one".