11621005411061 has 8 divisors (see below), whose sum is σ = 11639853733464. Its totient is φ = 11602159329280.

The previous prime is 11621005411031. The next prime is 11621005411091. The reversal of 11621005411061 is 16011450012611.

It is an interprime number because it is at equal distance from previous prime (11621005411031) and next prime (11621005411091).

It can be written as a sum of positive squares in 4 ways, for example, as 10175525808100 + 1445479602961 = 3189910^2 + 1202281^2 .

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 11621005411061 - 2³⁰ = 11619931669237 is a prime.

It is a super-2 number, since 2×11621005411061² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621005411031) 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, 9981935 + ... + 11085171.

It is an arithmetic number, because the mean of its divisors is an integer number (1454981716683).

Almost surely, 2^{11621005411061} is an apocalyptic number.

It is an amenable number.

11621005411061 is a deficient number, since it is larger than the sum of its proper divisors (18848322403).

11621005411061 is a wasteful number, since it uses less digits than its factorization.

11621005411061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120311.

The product of its (nonzero) digits is 1440, while the sum is 29.

Adding to 11621005411061 its reverse (16011450012611), we get a palindrome (27632455423672).

The spelling of 11621005411061 in words is "eleven trillion, six hundred twenty-one billion, five million, four hundred eleven thousand, sixty-one".