60721615086 has 32 divisors (see below), whose sum is σ = 132709304448. Its totient is φ = 18369131040.

The previous prime is 60721615061. The next prime is 60721615091. The reversal of 60721615086 is 68051612706.

It is a super-2 number, since 2×60721615086² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

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, 744925 + ... + 822408.

It is an arithmetic number, because the mean of its divisors is an integer number (4147165764).

Almost surely, 2^60721615086 is an apocalyptic number.

60721615086 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

60721615086 is an abundant number, since it is smaller than the sum of its proper divisors (71987689362).

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

60721615086 is a wasteful number, since it uses less digits than its factorization.

60721615086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567936.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 60721615086 in words is "sixty billion, seven hundred twenty-one million, six hundred fifteen thousand, eighty-six".