16405769140 has 24 divisors (see below), whose sum is σ = 34491169440. Its totient is φ = 6554868768.

The previous prime is 16405769137. The next prime is 16405769143. The reversal of 16405769140 is 4196750461.

It is an interprime number because it is at equal distance from previous prime (16405769137) and next prime (16405769143).

It is a super-2 number, since 2×16405769140² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16405769143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446830 + ... + 482149.

It is an arithmetic number, because the mean of its divisors is an integer number (1437132060).

Almost surely, 2^16405769140 is an apocalyptic number.

16405769140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16405769140 is an abundant number, since it is smaller than the sum of its proper divisors (18085400300).

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

16405769140 is a wasteful number, since it uses less digits than its factorization.

16405769140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929871 (or 929869 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 16405769140 in words is "sixteen billion, four hundred five million, seven hundred sixty-nine thousand, one hundred forty".