14511664061521 has 8 divisors (see below), whose sum is σ = 15831002476224. Its totient is φ = 13192341684720.

The previous prime is 14511664061519. The next prime is 14511664061561. The reversal of 14511664061521 is 12516046611541.

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

It is not a de Polignac number, because 14511664061521 - 2¹ = 14511664061519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14511664061561) 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, 2077045 + ... + 5773858.

It is an arithmetic number, because the mean of its divisors is an integer number (1978875309528).

Almost surely, 2^{14511664061521} is an apocalyptic number.

14511664061521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14511664061521 is a deficient number, since it is larger than the sum of its proper divisors (1319338414703).

14511664061521 is a wasteful number, since it uses less digits than its factorization.

14511664061521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8018951.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 14511664061521 in words is "fourteen trillion, five hundred eleven billion, six hundred sixty-four million, sixty-one thousand, five hundred twenty-one".