64320423561562 has 48 divisors (see below), whose sum is σ = 114622451768448. Its totient is φ = 26978928681600.

The previous prime is 64320423561539. The next prime is 64320423561613. The reversal of 64320423561562 is 26516532402346.

It is a super-3 number, since 3×64320423561562³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494513437 + ... + 494643487.

It is an arithmetic number, because the mean of its divisors is an integer number (2387967745176).

Almost surely, 2^{64320423561562} is an apocalyptic number.

64320423561562 is a deficient number, since it is larger than the sum of its proper divisors (50302028206886).

64320423561562 is a wasteful number, since it uses less digits than its factorization.

64320423561562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237491 (or 237484 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 64320423561562 in words is "sixty-four trillion, three hundred twenty billion, four hundred twenty-three million, five hundred sixty-one thousand, five hundred sixty-two".