2066354538 has 32 divisors (see below), whose sum is σ = 4490557440. Its totient is φ = 631482480.

The previous prime is 2066354501. The next prime is 2066354561. The reversal of 2066354538 is 8354536602.

It is a self number, because there is not a number n which added to its sum of digits gives 2066354538.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288820 + ... + 295887.

It is an arithmetic number, because the mean of its divisors is an integer number (140329920).

Almost surely, 2^2066354538 is an apocalyptic number.

2066354538 is an abundant number, since it is smaller than the sum of its proper divisors (2424202902).

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

2066354538 is a wasteful number, since it uses less digits than its factorization.

2066354538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584762.

The product of its (nonzero) digits is 518400, while the sum is 42.

The square root of 2066354538 is about 45457.1725693537. The cubic root of 2066354538 is about 1273.7033159277.

The spelling of 2066354538 in words is "two billion, sixty-six million, three hundred fifty-four thousand, five hundred thirty-eight".