215361261515246 has 16 divisors (see below), whose sum is σ = 402753528028800. Its totient is φ = 83906985005880.

The previous prime is 215361261515063. The next prime is 215361261515261. The reversal of 215361261515246 is 642515162163512.

It is a super-2 number, since 2×215361261515246² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215361261515194 and 215361261515203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699224874896 + ... + 699224875203.

It is an arithmetic number, because the mean of its divisors is an integer number (25172095501800).

Almost surely, 2^{215361261515246} is an apocalyptic number.

215361261515246 is a deficient number, since it is larger than the sum of its proper divisors (187392266513554).

215361261515246 is a wasteful number, since it uses less digits than its factorization.

215361261515246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398449750119.

The product of its digits is 2592000, while the sum is 50.

The spelling of 215361261515246 in words is "two hundred fifteen trillion, three hundred sixty-one billion, two hundred sixty-one million, five hundred fifteen thousand, two hundred forty-six".