1115166661050 has 96 divisors (see below), whose sum is σ = 2984072132160. Its totient is φ = 273975436800.

The previous prime is 1115166661003. The next prime is 1115166661087. The reversal of 1115166661050 is 501666615111.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 467121 + ... + 1564779.

It is an arithmetic number, because the mean of its divisors is an integer number (31084084710).

Almost surely, 2^{1115166661050} is an apocalyptic number.

1115166661050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115166661050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1492036066080).

1115166661050 is an abundant number, since it is smaller than the sum of its proper divisors (1868905471110).

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

1115166661050 is a wasteful number, since it uses less digits than its factorization.

1115166661050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098208 (or 1098203 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 1115166661050 in words is "one trillion, one hundred fifteen billion, one hundred sixty-six million, six hundred sixty-one thousand, fifty".