10605151561 has 4 divisors (see below), whose sum is σ = 10605380500. Its totient is φ = 10604922624.

The previous prime is 10605151559. The next prime is 10605151573. The reversal of 10605151561 is 16515150601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16515150601 = 47 ⋅351386183.

It can be written as a sum of positive squares in 2 ways, for example, as 7399440400 + 3205711161 = 86020^2 + 56619^2 .

It is a cyclic number.

It is not a de Polignac number, because 10605151561 - 2¹ = 10605151559 is a prime.

It is a super-2 number, since 2×10605151561² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10605151861) 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, 17736 + ... + 146713.

It is an arithmetic number, because the mean of its divisors is an integer number (2651345125).

Almost surely, 2^10605151561 is an apocalyptic number.

It is an amenable number.

10605151561 is a deficient number, since it is larger than the sum of its proper divisors (228939).

10605151561 is an equidigital number, since it uses as much as digits as its factorization.

10605151561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228938.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 10605151561 in words is "ten billion, six hundred five million, one hundred fifty-one thousand, five hundred sixty-one".