1610659013597 has 4 divisors (see below), whose sum is σ = 1614716089596. Its totient is φ = 1606601937600.

The previous prime is 1610659013591. The next prime is 1610659013599. The reversal of 1610659013597 is 7953109560161.

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 978020124601 + 632638888996 = 988949^2 + 795386^2 .

It is a cyclic number.

It is not a de Polignac number, because 1610659013597 - 2¹⁸ = 1610658751453 is a prime.

It is a super-2 number, since 2×1610659013597² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1610659013591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2028537404 + ... + 2028538197.

It is an arithmetic number, because the mean of its divisors is an integer number (403679022399).

Almost surely, 2^{1610659013597} is an apocalyptic number.

It is an amenable number.

1610659013597 is a deficient number, since it is larger than the sum of its proper divisors (4057075999).

1610659013597 is an equidigital number, since it uses as much as digits as its factorization.

1610659013597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057075998.

The product of its (nonzero) digits is 1530900, while the sum is 53.

The spelling of 1610659013597 in words is "one trillion, six hundred ten billion, six hundred fifty-nine million, thirteen thousand, five hundred ninety-seven".