16140061345 has 16 divisors (see below), whose sum is σ = 19594039248. Its totient is φ = 12761763840.

The previous prime is 16140061337. The next prime is 16140061361. The reversal of 16140061345 is 54316004161.

It can be written as a sum of positive squares in 8 ways, for example, as 333537169 + 15806524176 = 18263^2 + 125724^2 .

It is not a de Polignac number, because 16140061345 - 2³ = 16140061337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345165 + ... + 389125.

It is an arithmetic number, because the mean of its divisors is an integer number (1224627453).

Almost surely, 2^16140061345 is an apocalyptic number.

It is an amenable number.

16140061345 is a deficient number, since it is larger than the sum of its proper divisors (3453977903).

16140061345 is an equidigital number, since it uses as much as digits as its factorization.

16140061345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44820.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 16140061345 in words is "sixteen billion, one hundred forty million, sixty-one thousand, three hundred forty-five".