16377605440 has 56 divisors (see below), whose sum is σ = 44570489472. Its totient is φ = 5615178240.

The previous prime is 16377605437. The next prime is 16377605479. The reversal of 16377605440 is 4450677361.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3653476 + ... + 3657955.

Almost surely, 2^16377605440 is an apocalyptic number.

16377605440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16377605440 is an abundant number, since it is smaller than the sum of its proper divisors (28192884032).

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

16377605440 is an equidigital number, since it uses as much as digits as its factorization.

16377605440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311455 (or 7311445 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 16377605440 in words is "sixteen billion, three hundred seventy-seven million, six hundred five thousand, four hundred forty".