1590255797761 has 4 divisors (see below), whose sum is σ = 1601863504452. Its totient is φ = 1578648091072.

The previous prime is 1590255797749. The next prime is 1590255797789. The reversal of 1590255797761 is 1677975520951.

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 899310822400 + 690944975361 = 948320^2 + 831231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1590255797761 is a prime.

It is a super-2 number, since 2×1590255797761² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1590255797693 and 1590255797702.

It is not an unprimeable number, because it can be changed into a prime (1590255797791) 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, 5803853140 + ... + 5803853413.

It is an arithmetic number, because the mean of its divisors is an integer number (400465876113).

Almost surely, 2^{1590255797761} is an apocalyptic number.

It is an amenable number.

1590255797761 is a deficient number, since it is larger than the sum of its proper divisors (11607706691).

1590255797761 is a wasteful number, since it uses less digits than its factorization.

1590255797761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11607706690.

The product of its (nonzero) digits is 41674500, while the sum is 64.

The spelling of 1590255797761 in words is "one trillion, five hundred ninety billion, two hundred fifty-five million, seven hundred ninety-seven thousand, seven hundred sixty-one".