11551541615404 has 24 divisors (see below), whose sum is σ = 23126974787840. Its totient is φ = 4945541072976.

The previous prime is 11551541615347. The next prime is 11551541615437. The reversal of 11551541615404 is 40451614515511.

It is a super-2 number, since 2×11551541615404² (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 in 7 ways as a sum of consecutive naturals, for example, 213289914 + ... + 213344065.

Almost surely, 2^{11551541615404} is an apocalyptic number.

11551541615404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11551541615404 is an abundant number, since it is smaller than the sum of its proper divisors (11575433172436).

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

11551541615404 is a wasteful number, since it uses less digits than its factorization.

11551541615404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426634957 (or 426634955 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 43.

The spelling of 11551541615404 in words is "eleven trillion, five hundred fifty-one billion, five hundred forty-one million, six hundred fifteen thousand, four hundred four".