206078724156 has 24 divisors (see below), whose sum is σ = 480894820560. Its totient is φ = 68686556032.

The previous prime is 206078724143. The next prime is 206078724157. The reversal of 206078724156 is 651427870602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206078724157) 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, 657891 + ... + 919226.

It is an arithmetic number, because the mean of its divisors is an integer number (20037284190).

Almost surely, 2^206078724156 is an apocalyptic number.

It is an amenable number.

206078724156 is an abundant number, since it is smaller than the sum of its proper divisors (274816096404).

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

206078724156 is a wasteful number, since it uses less digits than its factorization.

206078724156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588013 (or 1588011 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 206078724156 in words is "two hundred six billion, seventy-eight million, seven hundred twenty-four thousand, one hundred fifty-six".