36666705890 has 16 divisors (see below), whose sum is σ = 66097571832. Its totient is φ = 14645015424.

The previous prime is 36666705883. The next prime is 36666705919. The reversal of 36666705890 is 9850766663.

It can be written as a sum of positive squares in 4 ways, for example, as 33682159729 + 2984546161 = 183527^2 + 54631^2 .

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, 2701259 + ... + 2714798.

Almost surely, 2^36666705890 is an apocalyptic number.

36666705890 is a deficient number, since it is larger than the sum of its proper divisors (29430865942).

36666705890 is a wasteful number, since it uses less digits than its factorization.

36666705890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416741.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 36666705890 in words is "thirty-six billion, six hundred sixty-six million, seven hundred five thousand, eight hundred ninety".