16280134957 has 4 divisors (see below), whose sum is σ = 16370080636. Its totient is φ = 16190189280.

The previous prime is 16280134951. The next prime is 16280134967. The reversal of 16280134957 is 75943108261.

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 483164361 + 15796970596 = 21981^2 + 125686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16280134957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16280134951) 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 3 ways as a sum of consecutive naturals, for example, 44972568 + ... + 44972929.

It is an arithmetic number, because the mean of its divisors is an integer number (4092520159).

It is a 1-persistent number, because it is pandigital, but 2⋅16280134957 = 32560269914 is not.

Almost surely, 2^16280134957 is an apocalyptic number.

It is an amenable number.

16280134957 is a deficient number, since it is larger than the sum of its proper divisors (89945679).

16280134957 is an equidigital number, since it uses as much as digits as its factorization.

16280134957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89945678.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 16280134957 in words is "sixteen billion, two hundred eighty million, one hundred thirty-four thousand, nine hundred fifty-seven".