1161665626000 has 160 divisors (see below), whose sum is σ = 3067650443520. Its totient is φ = 421956864000.

The previous prime is 1161665625973. The next prime is 1161665626067. The reversal of 1161665626000 is 6265661611.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20189272 + ... + 20246728.

It is an arithmetic number, because the mean of its divisors is an integer number (19172815272).

Almost surely, 2^{1161665626000} is an apocalyptic number.

1161665626000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161665626000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1533825221760).

1161665626000 is an abundant number, since it is smaller than the sum of its proper divisors (1905984817520).

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

1161665626000 is a wasteful number, since it uses less digits than its factorization.

1161665626000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58410 (or 58394 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 1161665626000 in words is "one trillion, one hundred sixty-one billion, six hundred sixty-five million, six hundred twenty-six thousand".