16890405070 has 32 divisors (see below), whose sum is σ = 37904702976. Its totient is φ = 5264541600.

The previous prime is 16890405047. The next prime is 16890405073. The reversal of 16890405070 is 7050409861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890405073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10967026 + ... + 10968565.

It is an arithmetic number, because the mean of its divisors is an integer number (1184521968).

Almost surely, 2^16890405070 is an apocalyptic number.

16890405070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16890405070 is an abundant number, since it is smaller than the sum of its proper divisors (21014297906).

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

16890405070 is a wasteful number, since it uses less digits than its factorization.

16890405070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21935616.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 16890405070 in words is "sixteen billion, eight hundred ninety million, four hundred five thousand, seventy".