215388416396 has 12 divisors (see below), whose sum is σ = 382093150152. Its totient is φ = 106218944928.

The previous prime is 215388416381. The next prime is 215388416401. The reversal of 215388416396 is 693614883512.

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, 368815490 + ... + 368816073.

It is an arithmetic number, because the mean of its divisors is an integer number (31841095846).

Almost surely, 2^215388416396 is an apocalyptic number.

It is an amenable number.

215388416396 is a deficient number, since it is larger than the sum of its proper divisors (166704733756).

215388416396 is a wasteful number, since it uses less digits than its factorization.

215388416396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737631640 (or 737631638 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The spelling of 215388416396 in words is "two hundred fifteen billion, three hundred eighty-eight million, four hundred sixteen thousand, three hundred ninety-six".