215210004000 has 192 divisors, whose sum is σ = 746500914432. Its totient is φ = 54013440000.

The previous prime is 215210003993. The next prime is 215210004041. The reversal of 215210004000 is 400012512.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323476 + ... + 731475.

It is an arithmetic number, because the mean of its divisors is an integer number (3888025596).

Almost surely, 2^215210004000 is an apocalyptic number.

215210004000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215210004000 is an abundant number, since it is smaller than the sum of its proper divisors (531290910432).

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

215210004000 is a wasteful number, since it uses less digits than its factorization.

215210004000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054996 (or 1054978 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 215210004000 its reverse (400012512), we get a palindrome (215610016512).

The spelling of 215210004000 in words is "two hundred fifteen billion, two hundred ten million, four thousand".