64342045243320 has 64 divisors (see below), whose sum is σ = 207874300021920. Its totient is φ = 15838041905664.

The previous prime is 64342045243271. The next prime is 64342045243327. The reversal of 64342045243320 is 2334254024346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64342045243327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20622448839 + ... + 20622451958.

Almost surely, 2^{64342045243320} is an apocalyptic number.

64342045243320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64342045243320 is an abundant number, since it is smaller than the sum of its proper divisors (143532254778600).

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

64342045243320 is a wasteful number, since it uses less digits than its factorization.

64342045243320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41244900824 (or 41244900820 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 42.

Adding to 64342045243320 its reverse (2334254024346), we get a palindrome (66676299267666).

The spelling of 64342045243320 in words is "sixty-four trillion, three hundred forty-two billion, forty-five million, two hundred forty-three thousand, three hundred twenty".