61506000060 has 24 divisors (see below), whose sum is σ = 172216800336. Its totient is φ = 16401600000.

The previous prime is 61506000047. The next prime is 61506000107. The reversal of 61506000060 is 6000060516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512549941 + ... + 512550060.

It is an arithmetic number, because the mean of its divisors is an integer number (7175700014).

Almost surely, 2^61506000060 is an apocalyptic number.

61506000060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61506000060 is an abundant number, since it is smaller than the sum of its proper divisors (110710800276).

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

61506000060 is a wasteful number, since it uses less digits than its factorization.

61506000060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025100013 (or 1025100011 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 61506000060 its reverse (6000060516), we get a palindrome (67506060576).

The spelling of 61506000060 in words is "sixty-one billion, five hundred six million, sixty", and thus it is an aban number.