10601612521 has 8 divisors (see below), whose sum is σ = 10688054184. Its totient is φ = 10515302400.

The previous prime is 10601612519. The next prime is 10601612557. The reversal of 10601612521 is 12521610601.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16289296 + 10585323225 = 4036^2 + 102885^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10601612521 - 2¹ = 10601612519 is a prime.

It is a super-2 number, since 2×10601612521² (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 (10601616521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132321 + ... + 196753.

It is an arithmetic number, because the mean of its divisors is an integer number (1336006773).

Almost surely, 2^10601612521 is an apocalyptic number.

It is an amenable number.

10601612521 is a deficient number, since it is larger than the sum of its proper divisors (86441663).

10601612521 is a wasteful number, since it uses less digits than its factorization.

10601612521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65771.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 10601612521 in words is "ten billion, six hundred one million, six hundred twelve thousand, five hundred twenty-one".