11551416657020 has 48 divisors (see below), whose sum is σ = 24520003330368. Its totient is φ = 4570702940160.

The previous prime is 11551416657013. The next prime is 11551416657037. The reversal of 11551416657020 is 2075661415511.

It is a super-2 number, since 2×11551416657020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2532665 + ... + 5432975.

It is an arithmetic number, because the mean of its divisors is an integer number (510833402716).

Almost surely, 2^{11551416657020} is an apocalyptic number.

11551416657020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11551416657020 is an abundant number, since it is smaller than the sum of its proper divisors (12968586673348).

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

11551416657020 is a wasteful number, since it uses less digits than its factorization.

11551416657020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902470 (or 2902468 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 11551416657020 in words is "eleven trillion, five hundred fifty-one billion, four hundred sixteen million, six hundred fifty-seven thousand, twenty".