215506263260 has 48 divisors (see below), whose sum is σ = 454879330752. Its totient is φ = 85762022400.

The previous prime is 215506263239. The next prime is 215506263281. The reversal of 215506263260 is 62362605512.

215506263260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (215506263239) and next prime (215506263281).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5102630 + ... + 5144690.

It is an arithmetic number, because the mean of its divisors is an integer number (9476652724).

Almost surely, 2^215506263260 is an apocalyptic number.

215506263260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215506263260 is an abundant number, since it is smaller than the sum of its proper divisors (239373067492).

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

215506263260 is a wasteful number, since it uses less digits than its factorization.

215506263260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43374 (or 43372 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 215506263260 its reverse (62362605512), we get a palindrome (277868868772).

The spelling of 215506263260 in words is "two hundred fifteen billion, five hundred six million, two hundred sixty-three thousand, two hundred sixty".