64525344332530 has 32 divisors (see below), whose sum is σ = 116765904297600. Its totient is φ = 25672378152960.

The previous prime is 64525344332497. The next prime is 64525344332629. The reversal of 64525344332530 is 3523344352546.

It is a happy number.

It is a super-2 number, since 2×64525344332530² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255090 + ... + 11429170.

It is an arithmetic number, because the mean of its divisors is an integer number (3648934509300).

Almost surely, 2^{64525344332530} is an apocalyptic number.

64525344332530 is a deficient number, since it is larger than the sum of its proper divisors (52240559965070).

64525344332530 is a wasteful number, since it uses less digits than its factorization.

64525344332530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10177474.

The product of its (nonzero) digits is 15552000, while the sum is 49.

The spelling of 64525344332530 in words is "sixty-four trillion, five hundred twenty-five billion, three hundred forty-four million, three hundred thirty-two thousand, five hundred thirty".