16405041700 has 18 divisors (see below), whose sum is σ = 35598940706. Its totient is φ = 6562016640.

The previous prime is 16405041637. The next prime is 16405041707. The reversal of 16405041700 is 714050461.

It can be written as a sum of positive squares in 3 ways, for example, as 2378903076 + 14026138624 = 48774^2 + 118432^2 .

It is not an unprimeable number, because it can be changed into a prime (16405041707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82025109 + ... + 82025308.

Almost surely, 2^16405041700 is an apocalyptic number.

16405041700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16405041700 is an abundant number, since it is smaller than the sum of its proper divisors (19193899006).

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

16405041700 is a wasteful number, since it uses less digits than its factorization.

16405041700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164050431 (or 164050424 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 16405041700 in words is "sixteen billion, four hundred five million, forty-one thousand, seven hundred".