11621500105 has 8 divisors (see below), whose sum is σ = 14039397000. Its totient is φ = 9234802176.

The previous prime is 11621500091. The next prime is 11621500109. The reversal of 11621500105 is 50100512611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 272646144 + 11348853961 = 16512^2 + 106531^2 .

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 11621500105 - 2¹⁷ = 11621369033 is a prime.

It is a super-2 number, since 2×11621500105² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11621500109) 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, 7798920 + ... + 7800409.

It is an arithmetic number, because the mean of its divisors is an integer number (1754924625).

Almost surely, 2^11621500105 is an apocalyptic number.

It is an amenable number.

11621500105 is a deficient number, since it is larger than the sum of its proper divisors (2417896895).

11621500105 is a wasteful number, since it uses less digits than its factorization.

11621500105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15599483.

The product of its (nonzero) digits is 300, while the sum is 22.

The spelling of 11621500105 in words is "eleven billion, six hundred twenty-one million, five hundred thousand, one hundred five".