61520360532 has 48 divisors (see below), whose sum is σ = 149809575552. Its totient is φ = 19612454400.

The previous prime is 61520360519. The next prime is 61520360567. The reversal of 61520360532 is 23506302516.

It is a junction number, because it is equal to n+sod(n) for n = 61520360493 and 61520360502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3097032 + ... + 3116832.

It is an arithmetic number, because the mean of its divisors is an integer number (3121032824).

Almost surely, 2^61520360532 is an apocalyptic number.

It is an amenable number.

61520360532 is an abundant number, since it is smaller than the sum of its proper divisors (88289215020).

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

61520360532 is a wasteful number, since it uses less digits than its factorization.

61520360532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31088 (or 31086 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The spelling of 61520360532 in words is "sixty-one billion, five hundred twenty million, three hundred sixty thousand, five hundred thirty-two".