11166624621 has 12 divisors (see below), whose sum is σ = 16181105148. Its totient is φ = 7420630464.

The previous prime is 11166624619. The next prime is 11166624661. The reversal of 11166624621 is 12642666111.

It can be written as a sum of positive squares in 2 ways, for example, as 4756860900 + 6409763721 = 68970^2 + 80061^2 .

It is not a de Polignac number, because 11166624621 - 2¹ = 11166624619 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11166624661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1979190 + ... + 1984823.

It is an arithmetic number, because the mean of its divisors is an integer number (1348425429).

Almost surely, 2^11166624621 is an apocalyptic number.

It is an amenable number.

11166624621 is a deficient number, since it is larger than the sum of its proper divisors (5014480527).

11166624621 is a wasteful number, since it uses less digits than its factorization.

11166624621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964332 (or 3964329 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The spelling of 11166624621 in words is "eleven billion, one hundred sixty-six million, six hundred twenty-four thousand, six hundred twenty-one".