206116266424644 has 18 divisors (see below), whose sum is σ = 521016117906830. Its totient is φ = 68705422141536.

The previous prime is 206116266424553. The next prime is 206116266424657. The reversal of 206116266424644 is 446424662611602.

206116266424644 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 1 + 626 + 6 + 4 + 2 + 4 + 6 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 198108102207744 + 8008164216900 = 14075088^2 + 2829870^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2862725922529 + ... + 2862725922600.

Almost surely, 2^{206116266424644} is an apocalyptic number.

It is an amenable number.

206116266424644 is an abundant number, since it is smaller than the sum of its proper divisors (314899851482186).

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

206116266424644 is a wasteful number, since it uses less digits than its factorization.

206116266424644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725451845139 (or 5725451845134 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 54.

The spelling of 206116266424644 in words is "two hundred six trillion, one hundred sixteen billion, two hundred sixty-six million, four hundred twenty-four thousand, six hundred forty-four".