206611361628 has 24 divisors (see below), whose sum is σ = 550963631232. Its totient is φ = 59031817584.

The previous prime is 206611361549. The next prime is 206611361659. The reversal of 206611361628 is 826163116602.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 206611361628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229829450 + ... + 1229829617.

It is an arithmetic number, because the mean of its divisors is an integer number (22956817968).

Almost surely, 2^206611361628 is an apocalyptic number.

206611361628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

206611361628 is an abundant number, since it is smaller than the sum of its proper divisors (344352269604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206611361628 is a wasteful number, since it uses less digits than its factorization.

206611361628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459659081 (or 2459659079 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 206611361628 in words is "two hundred six billion, six hundred eleven million, three hundred sixty-one thousand, six hundred twenty-eight".