64211715330 has 96 divisors (see below), whose sum is σ = 187063012224. Its totient is φ = 14038827264.

The previous prime is 64211715301. The next prime is 64211715371. The reversal of 64211715330 is 3351711246.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64211715291 and 64211715300.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 915787 + ... + 983406.

It is an arithmetic number, because the mean of its divisors is an integer number (1948573044).

Almost surely, 2^64211715330 is an apocalyptic number.

64211715330 is an abundant number, since it is smaller than the sum of its proper divisors (122851296894).

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

64211715330 is a wasteful number, since it uses less digits than its factorization.

64211715330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899240 (or 1899233 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The spelling of 64211715330 in words is "sixty-four billion, two hundred eleven million, seven hundred fifteen thousand, three hundred thirty".