11610557001 has 6 divisors (see below), whose sum is σ = 16770804570. Its totient is φ = 7740371328.

The previous prime is 11610556999. The next prime is 11610557003. The reversal of 11610557001 is 10075501611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11610556999) and next prime (11610557003).

It can be written as a sum of positive squares in only one way, i.e., 9811100601 + 1799456400 = 99051^2 + 42420^2 .

It is not a de Polignac number, because 11610557001 - 2¹ = 11610556999 is a prime.

It is a super-2 number, since 2×11610557001² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11610557003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645030936 + ... + 645030953.

It is an arithmetic number, because the mean of its divisors is an integer number (2795134095).

Almost surely, 2^11610557001 is an apocalyptic number.

It is an amenable number.

11610557001 is a deficient number, since it is larger than the sum of its proper divisors (5160247569).

11610557001 is a wasteful number, since it uses less digits than its factorization.

11610557001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290061895 (or 1290061892 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 27.

The spelling of 11610557001 in words is "eleven billion, six hundred ten million, five hundred fifty-seven thousand, one".