83166739490 has 32 divisors (see below), whose sum is σ = 151479290160. Its totient is φ = 32872967424.

The previous prime is 83166739489. The next prime is 83166739507. The reversal of 83166739490 is 9493766138.

It can be written as a sum of positive squares in 8 ways, for example, as 69595188481 + 13571551009 = 263809^2 + 116497^2 .

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, 304292 + ... + 508848.

Almost surely, 2^83166739490 is an apocalyptic number.

83166739490 is a deficient number, since it is larger than the sum of its proper divisors (68312550670).

83166739490 is a wasteful number, since it uses less digits than its factorization.

83166739490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205046.

The product of its (nonzero) digits is 5878656, while the sum is 56.

The spelling of 83166739490 in words is "eighty-three billion, one hundred sixty-six million, seven hundred thirty-nine thousand, four hundred ninety".