61524466064 has 10 divisors (see below), whose sum is σ = 119203653030. Its totient is φ = 30762233024.

The previous prime is 61524466051. The next prime is 61524466111. The reversal of 61524466064 is 46066442516.

It can be written as a sum of positive squares in only one way, i.e., 54471825664 + 7052640400 = 233392^2 + 83980^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1922639549 + ... + 1922639580.

It is an arithmetic number, because the mean of its divisors is an integer number (11920365303).

Almost surely, 2^61524466064 is an apocalyptic number.

It is an amenable number.

61524466064 is a deficient number, since it is larger than the sum of its proper divisors (57679186966).

61524466064 is a wasteful number, since it uses less digits than its factorization.

61524466064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845279137 (or 3845279131 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 61524466064 in words is "sixty-one billion, five hundred twenty-four million, four hundred sixty-six thousand, sixty-four".