1475611097561 has 2 divisors, whose sum is σ = 1475611097562. Its totient is φ = 1475611097560.

The previous prime is 1475611097551. The next prime is 1475611097573. The reversal of 1475611097561 is 1657901165741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815201323225 + 660409774336 = 902885^2 + 812656^2 .

It is an emirp because it is prime and its reverse (1657901165741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1475611097561 - 2³⁸ = 1200733190617 is a prime.

It is a super-2 number, since 2×1475611097561² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1475611097531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 737805548780 + 737805548781.

It is an arithmetic number, because the mean of its divisors is an integer number (737805548781).

Almost surely, 2^{1475611097561} is an apocalyptic number.

It is an amenable number.

1475611097561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1475611097561 is an equidigital number, since it uses as much as digits as its factorization.

1475611097561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 53.

The spelling of 1475611097561 in words is "one trillion, four hundred seventy-five billion, six hundred eleven million, ninety-seven thousand, five hundred sixty-one".