140416705665 has 36 divisors (see below), whose sum is σ = 248013523836. Its totient is φ = 73466335488.

The previous prime is 140416705631. The next prime is 140416705673. The reversal of 140416705665 is 566507614041.

140416705665 is a `hidden beast` number, since 1 + 4 + 0 + 4 + 16 + 70 + 566 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 4408428816 + 136008276849 = 66396^2 + 368793^2 .

It is not a de Polignac number, because 140416705665 - 2⁶ = 140416705601 is a prime.

It is a super-2 number, since 2×140416705665² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 140416705665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18296269 + ... + 18303941.

It is an arithmetic number, because the mean of its divisors is an integer number (6889264551).

Almost surely, 2^140416705665 is an apocalyptic number.

140416705665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140416705665 is a deficient number, since it is larger than the sum of its proper divisors (107596818171).

140416705665 is an frugal number, since it uses more digits than its factorization.

140416705665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15410 (or 7734 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 140416705665 in words is "one hundred forty billion, four hundred sixteen million, seven hundred five thousand, six hundred sixty-five".