16407075557 has 2 divisors, whose sum is σ = 16407075558. Its totient is φ = 16407075556.

The previous prime is 16407075533. The next prime is 16407075661. The reversal of 16407075557 is 75557070461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16382464036 + 24611521 = 127994^2 + 4961^2 .

It is a cyclic number.

It is not a de Polignac number, because 16407075557 - 2¹⁴ = 16407059173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16407075527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8203537778 + 8203537779.

It is an arithmetic number, because the mean of its divisors is an integer number (8203537779).

Almost surely, 2^16407075557 is an apocalyptic number.

It is an amenable number.

16407075557 is a deficient number, since it is larger than the sum of its proper divisors (1).

16407075557 is an equidigital number, since it uses as much as digits as its factorization.

16407075557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1029000, while the sum is 47.

The spelling of 16407075557 in words is "sixteen billion, four hundred seven million, seventy-five thousand, five hundred fifty-seven".