1091669251060 has 12 divisors (see below), whose sum is σ = 2292505427268. Its totient is φ = 436667700416.

The previous prime is 1091669251031. The next prime is 1091669251093. The reversal of 1091669251060 is 601529661901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 858239193744 + 233430057316 = 926412^2 + 483146^2 .

It is a super-2 number, since 2×1091669251060² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1091669251060.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27291731257 + ... + 27291731296.

It is an arithmetic number, because the mean of its divisors is an integer number (191042118939).

Almost surely, 2^{1091669251060} is an apocalyptic number.

1091669251060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1091669251060 is an abundant number, since it is smaller than the sum of its proper divisors (1200836176208).

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

1091669251060 is a wasteful number, since it uses less digits than its factorization.

1091669251060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54583462562 (or 54583462560 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 1091669251060 in words is "one trillion, ninety-one billion, six hundred sixty-nine million, two hundred fifty-one thousand, sixty".