60721161147 has 24 divisors (see below), whose sum is σ = 91881316800. Its totient is φ = 38590126848.

The previous prime is 60721161121. The next prime is 60721161169. The reversal of 60721161147 is 74116112706.

60721161147 is a `hidden beast` number, since 607 + 2 + 1 + 1 + 6 + 1 + 1 + 47 = 666.

It is not a de Polignac number, because 60721161147 - 2⁷ = 60721161019 is a prime.

It is a super-2 number, since 2×60721161147² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (60721160147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1451838 + ... + 1493075.

It is an arithmetic number, because the mean of its divisors is an integer number (3828388200).

Almost surely, 2^60721161147 is an apocalyptic number.

60721161147 is a deficient number, since it is larger than the sum of its proper divisors (31160155653).

60721161147 is a wasteful number, since it uses less digits than its factorization.

60721161147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945027 (or 2945024 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The spelling of 60721161147 in words is "sixty billion, seven hundred twenty-one million, one hundred sixty-one thousand, one hundred forty-seven".