215051413506 has 8 divisors (see below), whose sum is σ = 430102827024. Its totient is φ = 71683804500.

The previous prime is 215051413481. The next prime is 215051413517. The reversal of 215051413506 is 605314150512.

It is a sphenic number, since it is the product of 3 distinct primes.

215051413506 is an admirable number.

It is a super-2 number, since 2×215051413506² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17920951120 + ... + 17920951131.

It is an arithmetic number, because the mean of its divisors is an integer number (53762853378).

Almost surely, 2^215051413506 is an apocalyptic number.

215051413506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

215051413506 is a wasteful number, since it uses less digits than its factorization.

215051413506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35841902256.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 215051413506 in words is "two hundred fifteen billion, fifty-one million, four hundred thirteen thousand, five hundred six".