215165124006 has 16 divisors (see below), whose sum is σ = 491805997824. Its totient is φ = 61475749704.

The previous prime is 215165123989. The next prime is 215165124023. The reversal of 215165124006 is 600421561512.

It is an interprime number because it is at equal distance from previous prime (215165123989) and next prime (215165124023).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561489530 + ... + 2561489613.

It is an arithmetic number, because the mean of its divisors is an integer number (30737874864).

Almost surely, 2^215165124006 is an apocalyptic number.

215165124006 is an abundant number, since it is smaller than the sum of its proper divisors (276640873818).

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

215165124006 is a wasteful number, since it uses less digits than its factorization.

215165124006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5122979155.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 215165124006 its reverse (600421561512), we get a palindrome (815586685518).

The spelling of 215165124006 in words is "two hundred fifteen billion, one hundred sixty-five million, one hundred twenty-four thousand, six".