206312100654 has 64 divisors (see below), whose sum is σ = 453741668352. Its totient is φ = 62018611200.

The previous prime is 206312100649. The next prime is 206312100671. The reversal of 206312100654 is 456001213602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14161534 + ... + 14176094.

It is an arithmetic number, because the mean of its divisors is an integer number (7089713568).

Almost surely, 2^206312100654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206312100654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226870834176).

206312100654 is an abundant number, since it is smaller than the sum of its proper divisors (247429567698).

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

206312100654 is a wasteful number, since it uses less digits than its factorization.

206312100654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16281.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 206312100654 in words is "two hundred six billion, three hundred twelve million, one hundred thousand, six hundred fifty-four".