215411380800 has 672 divisors, whose sum is σ = 889366410240. Its totient is φ = 44341862400.

The previous prime is 215411380783. The next prime is 215411380817. The reversal of 215411380800 is 8083114512.

It is an interprime number because it is at equal distance from previous prime (215411380783) and next prime (215411380817).

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40283727 + ... + 40289073.

It is an arithmetic number, because the mean of its divisors is an integer number (1323461920).

Almost surely, 2^215411380800 is an apocalyptic number.

215411380800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215411380800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444683205120).

215411380800 is an abundant number, since it is smaller than the sum of its proper divisors (673955029440).

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

215411380800 is a wasteful number, since it uses less digits than its factorization.

215411380800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5499 (or 5484 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 215411380800 in words is "two hundred fifteen billion, four hundred eleven million, three hundred eighty thousand, eight hundred".