213350642156640 has 96 divisors (see below), whose sum is σ = 711587141808480. Its totient is φ = 53546827833344.

The previous prime is 213350642156573. The next prime is 213350642156677. The reversal of 213350642156640 is 46651246053312.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 213350642156640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13072947855 + ... + 13072964174.

It is an arithmetic number, because the mean of its divisors is an integer number (7412366060505).

Almost surely, 2^{213350642156640} is an apocalyptic number.

213350642156640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213350642156640 is an abundant number, since it is smaller than the sum of its proper divisors (498236499651840).

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

213350642156640 is a wasteful number, since it uses less digits than its factorization.

213350642156640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26145912064 (or 26145912056 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 213350642156640 in words is "two hundred thirteen trillion, three hundred fifty billion, six hundred forty-two million, one hundred fifty-six thousand, six hundred forty".