1606896557 has 12 divisors (see below), whose sum is σ = 1938198816. Its totient is φ = 1304846280.

The previous prime is 1606896539. The next prime is 1606896581. The reversal of 1606896557 is 7556986061.

It is not a de Polignac number, because 1606896557 - 2⁶ = 1606896493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1606896499 and 1606896508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606890557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315419 + ... + 320472.

It is an arithmetic number, because the mean of its divisors is an integer number (161516568).

Almost surely, 2^1606896557 is an apocalyptic number.

It is an amenable number.

1606896557 is a deficient number, since it is larger than the sum of its proper divisors (331302259).

1606896557 is an equidigital number, since it uses as much as digits as its factorization.

1606896557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635936 (or 635917 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 53.

The square root of 1606896557 is about 40086.1142666635. The cubic root of 1606896557 is about 1171.2851578284.

The spelling of 1606896557 in words is "one billion, six hundred six million, eight hundred ninety-six thousand, five hundred fifty-seven".