206612604451 has 8 divisors (see below), whose sum is σ = 227627209008. Its totient is φ = 185969940000.

The previous prime is 206612604449. The next prime is 206612604479. The reversal of 206612604451 is 154406216602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206612604451 - 2¹ = 206612604449 is a prime.

It is a super-2 number, since 2×206612604451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206612604451.

It is not an unprimeable number, because it can be changed into a prime (206612604481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92983860 + ... + 92986081.

It is an arithmetic number, because the mean of its divisors is an integer number (28453401126).

Almost surely, 2^206612604451 is an apocalyptic number.

206612604451 is a deficient number, since it is larger than the sum of its proper divisors (21014604557).

206612604451 is a wasteful number, since it uses less digits than its factorization.

206612604451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185970053.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 206612604451 in words is "two hundred six billion, six hundred twelve million, six hundred four thousand, four hundred fifty-one".