206151623541 has 12 divisors (see below), whose sum is σ = 310721287968. Its totient is φ = 131459006184.

The previous prime is 206151623521. The next prime is 206151623609. The reversal of 206151623541 is 145326151602.

206151623541 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 51 + 62 + 3 + 541 = 666.

It is not a de Polignac number, because 206151623541 - 2¹¹ = 206151621493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206151623496 and 206151623505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206151623521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497950575 + ... + 497950988.

It is an arithmetic number, because the mean of its divisors is an integer number (25893440664).

Almost surely, 2^206151623541 is an apocalyptic number.

It is an amenable number.

206151623541 is a deficient number, since it is larger than the sum of its proper divisors (104569664427).

206151623541 is a wasteful number, since it uses less digits than its factorization.

206151623541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995901592 (or 995901589 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

It can be divided in two parts, 206151623 and 541, that added together give a square (206152164 = 14358²).

The spelling of 206151623541 in words is "two hundred six billion, one hundred fifty-one million, six hundred twenty-three thousand, five hundred forty-one".