16354775040 has 416 divisors, whose sum is σ = 55342327680. Its totient is φ = 4117757952.

The previous prime is 16354775029. The next prime is 16354775057. The reversal of 16354775040 is 4057745361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16354774983 and 16354775001.

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, 119377852 + ... + 119377988.

Almost surely, 2^16354775040 is an apocalyptic number.

16354775040 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 16354775040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27671163840).

16354775040 is an abundant number, since it is smaller than the sum of its proper divisors (38987552640).

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

16354775040 is a wasteful number, since it uses less digits than its factorization.

16354775040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 16354775040 in words is "sixteen billion, three hundred fifty-four million, seven hundred seventy-five thousand, forty".