16740431990 has 16 divisors (see below), whose sum is σ = 30156734160. Its totient is φ = 6690849120.

The previous prime is 16740431977. The next prime is 16740431999. The reversal of 16740431990 is 9913404761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16740431999) 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, 652241 + ... + 677420.

It is an arithmetic number, because the mean of its divisors is an integer number (1884795885).

Almost surely, 2^16740431990 is an apocalyptic number.

16740431990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16740431990 is a deficient number, since it is larger than the sum of its proper divisors (13416302170).

16740431990 is a wasteful number, since it uses less digits than its factorization.

16740431990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330927.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 16740431990 in words is "sixteen billion, seven hundred forty million, four hundred thirty-one thousand, nine hundred ninety".