1066220257370 has 16 divisors (see below), whose sum is σ = 1919218003560. Its totient is φ = 426483316224.

The previous prime is 1066220257343. The next prime is 1066220257409. The reversal of 1066220257370 is 737520226601.

1066220257370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 703566986521 + 362653270849 = 838789^2 + 602207^2 .

It is a super-3 number, since 3×1066220257370³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419666 + ... + 1519394.

Almost surely, 2^{1066220257370} is an apocalyptic number.

1066220257370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066220257370 is a deficient number, since it is larger than the sum of its proper divisors (852997746190).

1066220257370 is a wasteful number, since it uses less digits than its factorization.

1066220257370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196689.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 1066220257370 in words is "one trillion, sixty-six billion, two hundred twenty million, two hundred fifty-seven thousand, three hundred seventy".