11354166021 has 16 divisors (see below), whose sum is σ = 16518163968. Its totient is φ = 6880057200.

The previous prime is 11354165959. The next prime is 11354166037. The reversal of 11354166021 is 12066145311.

It is a happy number.

It is not a de Polignac number, because 11354166021 - 2⁹ = 11354165509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11354166021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11354166041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171856 + ... + 228566.

It is an arithmetic number, because the mean of its divisors is an integer number (1032385248).

Almost surely, 2^11354166021 is an apocalyptic number.

11354166021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11354166021 is a deficient number, since it is larger than the sum of its proper divisors (5163997947).

11354166021 is a wasteful number, since it uses less digits than its factorization.

11354166021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62792.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 11354166021 in words is "eleven billion, three hundred fifty-four million, one hundred sixty-six thousand, twenty-one".