16499026140 has 96 divisors (see below), whose sum is σ = 47110351680. Its totient is φ = 4312928256.

The previous prime is 16499026081. The next prime is 16499026147. The reversal of 16499026140 is 4162099461.

It is a junction number, because it is equal to n+sod(n) for n = 16499026092 and 16499026101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16499026147) 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, 6769002 + ... + 6771438.

It is an arithmetic number, because the mean of its divisors is an integer number (490732830).

Almost surely, 2^16499026140 is an apocalyptic number.

16499026140 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 16499026140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23555175840).

16499026140 is an abundant number, since it is smaller than the sum of its proper divisors (30611325540).

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

16499026140 is a wasteful number, since it uses less digits than its factorization.

16499026140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631 (or 4629 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 16499026140 in words is "sixteen billion, four hundred ninety-nine million, twenty-six thousand, one hundred forty".