1313625011565 has 8 divisors (see below), whose sum is σ = 2101800018528. Its totient is φ = 700600006160.

The previous prime is 1313625011561. The next prime is 1313625011591. The reversal of 1313625011565 is 5651105263131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313625011565 - 2² = 1313625011561 is a prime.

It is a super-2 number, since 2×1313625011565² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313625011561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43787500371 + ... + 43787500400.

It is an arithmetic number, because the mean of its divisors is an integer number (262725002316).

Almost surely, 2^{1313625011565} is an apocalyptic number.

1313625011565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313625011565 is a deficient number, since it is larger than the sum of its proper divisors (788175006963).

1313625011565 is an equidigital number, since it uses as much as digits as its factorization.

1313625011565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87575000779.

The product of its (nonzero) digits is 81000, while the sum is 39.

The spelling of 1313625011565 in words is "one trillion, three hundred thirteen billion, six hundred twenty-five million, eleven thousand, five hundred sixty-five".