215205016 has 32 divisors (see below), whose sum is σ = 442758960. Its totient is φ = 97448832.

The previous prime is 215205013. The next prime is 215205041. The reversal of 215205016 is 610502512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215205013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14010 + ... + 25033.

Almost surely, 2^215205016 is an apocalyptic number.

215205016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

215205016 is an abundant number, since it is smaller than the sum of its proper divisors (227553944).

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

215205016 is a wasteful number, since it uses less digits than its factorization.

215205016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39115 (or 39111 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 215205016 is about 14669.8676203979. The cubic root of 215205016 is about 599.2629987897.

Adding to 215205016 its reverse (610502512), we get a palindrome (825707528).

The spelling of 215205016 in words is "two hundred fifteen million, two hundred five thousand, sixteen".