15551166550060 has 12 divisors (see below), whose sum is σ = 32657449755168. Its totient is φ = 6220466620016.

The previous prime is 15551166549973. The next prime is 15551166550067. The reversal of 15551166550060 is 6005566115551.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15551166550067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388779163732 + ... + 388779163771.

It is an arithmetic number, because the mean of its divisors is an integer number (2721454146264).

Almost surely, 2^{15551166550060} is an apocalyptic number.

15551166550060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15551166550060 is an abundant number, since it is smaller than the sum of its proper divisors (17106283205108).

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

15551166550060 is a wasteful number, since it uses less digits than its factorization.

15551166550060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777558327512 (or 777558327510 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 15551166550060 in words is "fifteen trillion, five hundred fifty-one billion, one hundred sixty-six million, five hundred fifty thousand, sixty".