2101662551060 has 12 divisors (see below), whose sum is σ = 4413491357268. Its totient is φ = 840665020416.

The previous prime is 2101662551047. The next prime is 2101662551141. The reversal of 2101662551060 is 601552661012.

It can be written as a sum of positive squares in 2 ways, for example, as 731479930756 + 1370182620304 = 855266^2 + 1170548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2101662551060.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52541563757 + ... + 52541563796.

It is an arithmetic number, because the mean of its divisors is an integer number (367790946439).

Almost surely, 2^{2101662551060} is an apocalyptic number.

2101662551060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101662551060 is an abundant number, since it is smaller than the sum of its proper divisors (2311828806208).

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

2101662551060 is a wasteful number, since it uses less digits than its factorization.

2101662551060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105083127562 (or 105083127560 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 2101662551060 in words is "two trillion, one hundred one billion, six hundred sixty-two million, five hundred fifty-one thousand, sixty".