14215152520 has 64 divisors (see below), whose sum is σ = 32197846320. Its totient is φ = 5648154624.

The previous prime is 14215152509. The next prime is 14215152527. The reversal of 14215152520 is 2525151241.

It can be written as a sum of positive squares in 8 ways, for example, as 4182726276 + 10032426244 = 64674^2 + 100162^2 .

It is a super-2 number, since 2×14215152520² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14215152527) 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, 8900362 + ... + 8901958.

Almost surely, 2^14215152520 is an apocalyptic number.

14215152520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14215152520 is an abundant number, since it is smaller than the sum of its proper divisors (17982693800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14215152520 is a wasteful number, since it uses less digits than its factorization.

14215152520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 14215152520 in words is "fourteen billion, two hundred fifteen million, one hundred fifty-two thousand, five hundred twenty".