14996696521 has 9 divisors (see below), whose sum is σ = 15115307949. Its totient is φ = 14879011500.

The previous prime is 14996696513. The next prime is 14996696531. The reversal of 14996696521 is 12569669941.

The square root of 14996696521 is 122461.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 14996696521 - 2³ = 14996696513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14996696531) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18491206 + ... + 18492016.

It is an arithmetic number, because the mean of its divisors is an integer number (1679478661).

Almost surely, 2^14996696521 is an apocalyptic number.

14996696521 is the 122461-st square number.

14996696521 is the 61231-st centered octagonal number.

It is an amenable number.

14996696521 is a deficient number, since it is larger than the sum of its proper divisors (118611428).

14996696521 is an frugal number, since it uses more digits than its factorization.

14996696521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 962 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 58.

The spelling of 14996696521 in words is "fourteen billion, nine hundred ninety-six million, six hundred ninety-six thousand, five hundred twenty-one".