206484977630 has 32 divisors (see below), whose sum is σ = 383692232448. Its totient is φ = 79923456000.

The previous prime is 206484977617. The next prime is 206484977639. The reversal of 206484977630 is 36779484602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206484977639) 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, 7386680 + ... + 7414580.

It is an arithmetic number, because the mean of its divisors is an integer number (11990382264).

Almost surely, 2^206484977630 is an apocalyptic number.

206484977630 is a deficient number, since it is larger than the sum of its proper divisors (177207254818).

206484977630 is a wasteful number, since it uses less digits than its factorization.

206484977630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51812.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 206484977630 in words is "two hundred six billion, four hundred eighty-four million, nine hundred seventy-seven thousand, six hundred thirty".