15530213214 has 32 divisors (see below), whose sum is σ = 34570448640. Its totient is φ = 5167908216.

The previous prime is 15530213173. The next prime is 15530213233. The reversal of 15530213214 is 41231203551.

It is a super-3 number, since 3×15530213214³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213274 + ... + 276669.

It is an arithmetic number, because the mean of its divisors is an integer number (1080326520).

Almost surely, 2^15530213214 is an apocalyptic number.

15530213214 is an abundant number, since it is smaller than the sum of its proper divisors (19040235426).

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

15530213214 is a wasteful number, since it uses less digits than its factorization.

15530213214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490541 (or 490535 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 15530213214 its reverse (41231203551), we get a palindrome (56761416765).

The spelling of 15530213214 in words is "fifteen billion, five hundred thirty million, two hundred thirteen thousand, two hundred fourteen".