16920949730 has 16 divisors (see below), whose sum is σ = 30470598144. Its totient is φ = 6765515760.

The previous prime is 16920949709. The next prime is 16920949769. The reversal of 16920949730 is 3794902961.

16920949730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333122 + ... + 380541.

It is an arithmetic number, because the mean of its divisors is an integer number (1904412384).

Almost surely, 2^16920949730 is an apocalyptic number.

16920949730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16920949730 is a deficient number, since it is larger than the sum of its proper divisors (13549648414).

16920949730 is a wasteful number, since it uses less digits than its factorization.

16920949730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716041.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 16920949730 in words is "sixteen billion, nine hundred twenty million, nine hundred forty-nine thousand, seven hundred thirty".