206577380411434 has 4 divisors (see below), whose sum is σ = 309866070617154. Its totient is φ = 103288690205716.

The previous prime is 206577380411419. The next prime is 206577380411443. The reversal of 206577380411434 is 434114083775602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 129753855812025 + 76823524599409 = 11390955^2 + 8764903^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51644345102857 + ... + 51644345102860.

Almost surely, 2^{206577380411434} is an apocalyptic number.

206577380411434 is a deficient number, since it is larger than the sum of its proper divisors (103288690205720).

206577380411434 is a wasteful number, since it uses less digits than its factorization.

206577380411434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103288690205719.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 206577380411434 in words is "two hundred six trillion, five hundred seventy-seven billion, three hundred eighty million, four hundred eleven thousand, four hundred thirty-four".