206104155710684 has 96 divisors (see below), whose sum is σ = 451159117194240. Its totient is φ = 80036548761600.

The previous prime is 206104155710683. The next prime is 206104155710801. The reversal of 206104155710684 is 486017551401602.

It is a super-2 number, since 2×206104155710684² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206104155710683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1541832602 + ... + 1541966270.

It is an arithmetic number, because the mean of its divisors is an integer number (4699574137440).

Almost surely, 2^{206104155710684} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206104155710684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225579558597120).

206104155710684 is an abundant number, since it is smaller than the sum of its proper divisors (245054961483556).

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

206104155710684 is a wasteful number, since it uses less digits than its factorization.

206104155710684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150099 (or 150097 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 206104155710684 in words is "two hundred six trillion, one hundred four billion, one hundred fifty-five million, seven hundred ten thousand, six hundred eighty-four".