16400400414 has 16 divisors (see below), whose sum is σ = 32936906640. Its totient is φ = 5444115840.

The previous prime is 16400400413. The next prime is 16400400433. The reversal of 16400400414 is 41400400461.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16400400413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5669509 + ... + 5672400.

It is an arithmetic number, because the mean of its divisors is an integer number (2058556665).

Almost surely, 2^16400400414 is an apocalyptic number.

16400400414 is an abundant number, since it is smaller than the sum of its proper divisors (16536506226).

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

16400400414 is a wasteful number, since it uses less digits than its factorization.

16400400414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11342155.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 16400400414 its reverse (41400400461), we get a palindrome (57800800875).

The spelling of 16400400414 in words is "sixteen billion, four hundred million, four hundred thousand, four hundred fourteen".