16540699032 has 480 divisors, whose sum is σ = 56980778400. Its totient is φ = 4293273600.

The previous prime is 16540699031. The next prime is 16540699079. The reversal of 16540699032 is 23099604561.

16540699032 is a `hidden beast` number, since 16 + 540 + 6 + 9 + 90 + 3 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16540699031) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 232967557 + ... + 232967627.

It is an arithmetic number, because the mean of its divisors is an integer number (118709955).

Almost surely, 2^16540699032 is an apocalyptic number.

16540699032 is a gapful number since it is divisible by the number (12) 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 16540699032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28490389200).

16540699032 is an abundant number, since it is smaller than the sum of its proper divisors (40440079368).

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

16540699032 is a wasteful number, since it uses less digits than its factorization.

16540699032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 16540699032 in words is "sixteen billion, five hundred forty million, six hundred ninety-nine thousand, thirty-two".