64142551000000 has 196 divisors, whose sum is σ = 173565364428648. Its totient is φ = 23324560000000.

The previous prime is 64142550999977. The next prime is 64142551000001. The reversal of 64142551000000 is 15524146.

It is a super-2 number, since 2×64142551000000² (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 (64142551000001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8084430 + ... + 13915570.

Almost surely, 2^{64142551000000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64142551000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86782682214324).

64142551000000 is an abundant number, since it is smaller than the sum of its proper divisors (109422813428648).

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

64142551000000 is an frugal number, since it uses more digits than its factorization.

64142551000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831194 (or 5831159 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 64142551000000 its reverse (15524146), we get a palindrome (64142566524146).

The spelling of 64142551000000 in words is "sixty-four trillion, one hundred forty-two billion, five hundred fifty-one million", and thus it is an aban number.