213549488640000 has 1560 divisors, whose sum is σ = 807827589048480. Its totient is φ = 56343527424000.

The previous prime is 213549488639989. The next prime is 213549488640049. The reversal of 213549488640000 is 46884945312.

213549488640000 is a `hidden beast` number, since 2 + 1 + 35 + 494 + 8 + 86 + 40 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 60341758231 + ... + 60341761769.

It is an arithmetic number, because the mean of its divisors is an integer number (517838198108).

Almost surely, 2^{213549488640000} is an apocalyptic number.

213549488640000 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 213549488640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403913794524240).

213549488640000 is an abundant number, since it is smaller than the sum of its proper divisors (594278100408480).

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

213549488640000 is an frugal number, since it uses more digits than its factorization.

213549488640000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695 (or 3646 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 213549488640000 in words is "two hundred thirteen trillion, five hundred forty-nine billion, four hundred eighty-eight million, six hundred forty thousand".