64050690720 has 192 divisors, whose sum is σ = 211261042944. Its totient is φ = 16280985600.

The previous prime is 64050690701. The next prime is 64050690751. The reversal of 64050690720 is 2709605046.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3224820 + ... + 3244620.

It is an arithmetic number, because the mean of its divisors is an integer number (1100317932).

Almost surely, 2^64050690720 is an apocalyptic number.

64050690720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64050690720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105630521472).

64050690720 is an abundant number, since it is smaller than the sum of its proper divisors (147210352224).

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

64050690720 is a wasteful number, since it uses less digits than its factorization.

64050690720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20135 (or 20127 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 64050690720 in words is "sixty-four billion, fifty million, six hundred ninety thousand, seven hundred twenty".