11551120255642 has 16 divisors (see below), whose sum is σ = 18924856114464. Its totient is φ = 5244113938000.

The previous prime is 11551120255627. The next prime is 11551120255693. The reversal of 11551120255642 is 24655202115511.

It is a super-3 number, since 3×11551120255642³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11551120255595 and 11551120255604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319744984 + ... + 319781107.

It is an arithmetic number, because the mean of its divisors is an integer number (1182803507154).

Almost surely, 2^{11551120255642} is an apocalyptic number.

11551120255642 is a deficient number, since it is larger than the sum of its proper divisors (7373735858822).

11551120255642 is a wasteful number, since it uses less digits than its factorization.

11551120255642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639526925.

The product of its (nonzero) digits is 120000, while the sum is 40.

The spelling of 11551120255642 in words is "eleven trillion, five hundred fifty-one billion, one hundred twenty million, two hundred fifty-five thousand, six hundred forty-two".