64693046704220 has 96 divisors (see below), whose sum is σ = 148470929510400. Its totient is φ = 23482710259200.

The previous prime is 64693046704217. The next prime is 64693046704229. The reversal of 64693046704220 is 2240764039646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64693046704229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290825840 + ... + 291048200.

It is an arithmetic number, because the mean of its divisors is an integer number (1546572182400).

Almost surely, 2^{64693046704220} is an apocalyptic number.

It is an amenable number.

64693046704220 is an abundant number, since it is smaller than the sum of its proper divisors (83777882806180).

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

64693046704220 is a wasteful number, since it uses less digits than its factorization.

64693046704220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224739 (or 224737 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 53.

The spelling of 64693046704220 in words is "sixty-four trillion, six hundred ninety-three billion, forty-six million, seven hundred four thousand, two hundred twenty".