16634763860 has 96 divisors (see below), whose sum is σ = 41091321600. Its totient is φ = 5576739840.

The previous prime is 16634763811. The next prime is 16634763877. The reversal of 16634763860 is 6836743661.

It is a junction number, because it is equal to n+sod(n) for n = 16634763799 and 16634763808.

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, 2625176 + ... + 2631504.

It is an arithmetic number, because the mean of its divisors is an integer number (428034600).

Almost surely, 2^16634763860 is an apocalyptic number.

16634763860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16634763860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20545660800).

16634763860 is an abundant number, since it is smaller than the sum of its proper divisors (24456557740).

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

16634763860 is a wasteful number, since it uses less digits than its factorization.

16634763860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281 (or 7279 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 16634763860 in words is "sixteen billion, six hundred thirty-four million, seven hundred sixty-three thousand, eight hundred sixty".