1313625011566 has 16 divisors (see below), whose sum is σ = 2251949359104. Its totient is φ = 562976955864.

The previous prime is 1313625011561. The next prime is 1313625011591. The reversal of 1313625011566 is 6651105263131.

It is a super-2 number, since 2×1313625011566² (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, 1410331 + ... + 2148553.

It is an arithmetic number, because the mean of its divisors is an integer number (140746834944).

Almost surely, 2^{1313625011566} is an apocalyptic number.

1313625011566 is a deficient number, since it is larger than the sum of its proper divisors (938324347538).

1313625011566 is a wasteful number, since it uses less digits than its factorization.

1313625011566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865335.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 1313625011566 in words is "one trillion, three hundred thirteen billion, six hundred twenty-five million, eleven thousand, five hundred sixty-six".