15515510230 has 32 divisors (see below), whose sum is σ = 31449627648. Its totient is φ = 5460002400.

The previous prime is 15515510221. The next prime is 15515510243. The reversal of 15515510230 is 3201551551.

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, 2271592 + ... + 2278411.

It is an arithmetic number, because the mean of its divisors is an integer number (982800864).

Almost surely, 2^15515510230 is an apocalyptic number.

15515510230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15515510230 is an abundant number, since it is smaller than the sum of its proper divisors (15934117418).

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

15515510230 is a wasteful number, since it uses less digits than its factorization.

15515510230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550052.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 15515510230 in words is "fifteen billion, five hundred fifteen million, five hundred ten thousand, two hundred thirty".