206630612625631 has 16 divisors (see below), whose sum is σ = 223807560451200. Its totient is φ = 190134695405088.

The previous prime is 206630612625611. The next prime is 206630612625667. The reversal of 206630612625631 is 136526216036602.

It is a cyclic number.

It is not a de Polignac number, because 206630612625631 - 2²¹ = 206630610528479 is a prime.

It is a super-2 number, since 2×206630612625631² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206630612625611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706317016 + ... + 706609501.

It is an arithmetic number, because the mean of its divisors is an integer number (13987972528200).

Almost surely, 2^{206630612625631} is an apocalyptic number.

206630612625631 is a deficient number, since it is larger than the sum of its proper divisors (17176947825569).

206630612625631 is a wasteful number, since it uses less digits than its factorization.

206630612625631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412926758.

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 206630612625631 in words is "two hundred six trillion, six hundred thirty billion, six hundred twelve million, six hundred twenty-five thousand, six hundred thirty-one".