11616168021 has 8 divisors (see below), whose sum is σ = 15488879040. Its totient is φ = 7743784512.

The previous prime is 11616167989. The next prime is 11616168059. The reversal of 11616168021 is 12086161611.

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

It is not a de Polignac number, because 11616168021 - 2⁵ = 11616167989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11616168061) 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, 18445 + ... + 153533.

It is an arithmetic number, because the mean of its divisors is an integer number (1936109880).

Almost surely, 2^11616168021 is an apocalyptic number.

It is an amenable number.

11616168021 is a deficient number, since it is larger than the sum of its proper divisors (3872711019).

11616168021 is a wasteful number, since it uses less digits than its factorization.

11616168021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163755.

The product of its (nonzero) digits is 3456, while the sum is 33.

The spelling of 11616168021 in words is "eleven billion, six hundred sixteen million, one hundred sixty-eight thousand, twenty-one".