15555050066011 has 8 divisors (see below), whose sum is σ = 16610509526400. Its totient is φ = 14534195833920.

The previous prime is 15555050065979. The next prime is 15555050066029. The reversal of 15555050066011 is 11066005055551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15555050066011 - 2⁵ = 15555050065979 is a prime.

It is a super-2 number, since 2×15555050066011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15555050066111) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 8651306146 + ... + 8651307943.

It is an arithmetic number, because the mean of its divisors is an integer number (2076313690800).

Almost surely, 2^{15555050066011} is an apocalyptic number.

15555050066011 is a deficient number, since it is larger than the sum of its proper divisors (1055459460389).

15555050066011 is a wasteful number, since it uses less digits than its factorization.

15555050066011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17302614149.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 15555050066011 in words is "fifteen trillion, five hundred fifty-five billion, fifty million, sixty-six thousand, eleven".