2066937735870 has 96 divisors (see below), whose sum is σ = 6353542653120. Its totient is φ = 456151772160.

The previous prime is 2066937735859. The next prime is 2066937735871. The reversal of 2066937735870 is 785377396602.

2066937735870 is a `hidden beast` number, since 2 + 0 + 66 + 93 + 77 + 358 + 70 = 666.

It is a super-3 number, since 3×2066937735870³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 2066937735798 and 2066937735807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066937735871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56548171 + ... + 56584710.

It is an arithmetic number, because the mean of its divisors is an integer number (66182735970).

Almost surely, 2^{2066937735870} is an apocalyptic number.

2066937735870 is an abundant number, since it is smaller than the sum of its proper divisors (4286604917250).

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

2066937735870 is a wasteful number, since it uses less digits than its factorization.

2066937735870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113132930 (or 113132927 counting only the distinct ones).

The product of its (nonzero) digits is 80015040, while the sum is 63.

The spelling of 2066937735870 in words is "two trillion, sixty-six billion, nine hundred thirty-seven million, seven hundred thirty-five thousand, eight hundred seventy".