3666357858 has 16 divisors (see below), whose sum is σ = 7488731520. Its totient is φ = 1196116656.

The previous prime is 3666357841. The next prime is 3666357911. The reversal of 3666357858 is 8587536663.

It is a junction number, because it is equal to n+sod(n) for n = 3666357798 and 3666357807.

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, 6500353 + ... + 6500916.

It is an arithmetic number, because the mean of its divisors is an integer number (468045720).

Almost surely, 2^3666357858 is an apocalyptic number.

3666357858 is an abundant number, since it is smaller than the sum of its proper divisors (3822373662).

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

3666357858 is a wasteful number, since it uses less digits than its factorization.

3666357858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001321.

The product of its digits is 21772800, while the sum is 57.

The square root of 3666357858 is about 60550.4571246163. The cubic root of 3666357858 is about 1541.9783785435.

The spelling of 3666357858 in words is "three billion, six hundred sixty-six million, three hundred fifty-seven thousand, eight hundred fifty-eight".