64897333246900 has 144 divisors (see below), whose sum is σ = 176055203745792. Its totient is φ = 20172622896000.

The previous prime is 64897333246861. The next prime is 64897333246901. The reversal of 64897333246900 is 964233379846.

It is a super-2 number, since 2×64897333246900² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64897333246901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8656696 + ... + 14308495.

It is an arithmetic number, because the mean of its divisors is an integer number (1222605581568).

Almost surely, 2^{64897333246900} is an apocalyptic number.

It is an amenable number.

64897333246900 is an abundant number, since it is smaller than the sum of its proper divisors (111157870498892).

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

64897333246900 is a wasteful number, since it uses less digits than its factorization.

64897333246900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22965590 (or 22965583 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 64.

The spelling of 64897333246900 in words is "sixty-four trillion, eight hundred ninety-seven billion, three hundred thirty-three million, two hundred forty-six thousand, nine hundred".