16488400686 has 16 divisors (see below), whose sum is σ = 32981797200.
Its totient is φ = 5495300928.
The previous prime is 16488400673. The next prime is 16488400699. The reversal of 16488400686 is 68600488461.
It is an interprime number because it is at equal distance from previous prime (16488400673) and next prime (16488400699).
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, 164551 + ... + 245058.
It is an arithmetic number, because the mean of its divisors is an integer number (2061362325).
Almost surely, 216488400686 is an apocalyptic number.
16488400686 is an abundant number, since it is smaller than the sum of its proper divisors (16493396514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16488400686 is a wasteful number, since it uses less digits than its factorization.
16488400686 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 416323.
The product of its (nonzero) digits is 1769472, while the sum is 51.
The spelling of 16488400686 in words is "sixteen billion, four hundred eighty-eight million, four hundred thousand, six hundred eighty-six".