11421814016 has 18 divisors (see below), whose sum is σ = 22799012082. Its totient is φ = 5710906880.

The previous prime is 11421814009. The next prime is 11421814037. The reversal of 11421814016 is 61041812411.

It can be written as a sum of positive squares in only one way, i.e., 7973775616 + 3448038400 = 89296^2 + 58720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11421814016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22307975 + ... + 22308486.

Almost surely, 2^11421814016 is an apocalyptic number.

11421814016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11421814016 is a deficient number, since it is larger than the sum of its proper divisors (11377198066).

11421814016 is an frugal number, since it uses more digits than its factorization.

11421814016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44616477 (or 44616463 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The spelling of 11421814016 in words is "eleven billion, four hundred twenty-one million, eight hundred fourteen thousand, sixteen".