1665610101050 has 48 divisors (see below), whose sum is σ = 3542529513600. Its totient is φ = 570756912960.

The previous prime is 1665610101049. The next prime is 1665610101097. The reversal of 1665610101050 is 501010165661.

It is a super-2 number, since 2×1665610101050² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1665610100998 and 1665610101016.

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 23 ways as a sum of consecutive naturals, for example, 641825 + ... + 1934724.

It is an arithmetic number, because the mean of its divisors is an integer number (73802698200).

Almost surely, 2^{1665610101050} is an apocalyptic number.

1665610101050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1665610101050 is an abundant number, since it is smaller than the sum of its proper divisors (1876919412550).

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

1665610101050 is a wasteful number, since it uses less digits than its factorization.

1665610101050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578415 (or 2578410 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 1665610101050 in words is "one trillion, six hundred sixty-five billion, six hundred ten million, one hundred one thousand, fifty".