16137533705 has 4 divisors (see below), whose sum is σ = 19365040452. Its totient is φ = 12910026960.

The previous prime is 16137533681. The next prime is 16137533717. The reversal of 16137533705 is 50733573161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11116960969 + 5020572736 = 105437^2 + 70856^2 .

It is not a de Polignac number, because 16137533705 - 2⁶ = 16137533641 is a prime.

It is a super-2 number, since 2×16137533705² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613753366 + ... + 1613753375.

It is an arithmetic number, because the mean of its divisors is an integer number (4841260113).

Almost surely, 2^16137533705 is an apocalyptic number.

It is an amenable number.

16137533705 is a deficient number, since it is larger than the sum of its proper divisors (3227506747).

16137533705 is an equidigital number, since it uses as much as digits as its factorization.

16137533705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227506746.

The product of its (nonzero) digits is 198450, while the sum is 41.

The spelling of 16137533705 in words is "sixteen billion, one hundred thirty-seven million, five hundred thirty-three thousand, seven hundred five".