60999999999977 has 2 divisors, whose sum is σ = 60999999999978. Its totient is φ = 60999999999976.

The previous prime is 60999999999947. The next prime is 61000000000129. The reversal of 60999999999977 is 77999999999906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52492575270976 + 8507424729001 = 7245176^2 + 2916749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60999999999977 is a prime.

It is not a weakly prime, because it can be changed into another prime (60999999999947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30499999999988 + 30499999999989.

It is an arithmetic number, because the mean of its divisors is an integer number (30499999999989).

Almost surely, 2^{60999999999977} is an apocalyptic number.

It is an amenable number.

60999999999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

60999999999977 is an equidigital number, since it uses as much as digits as its factorization.

60999999999977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1025114613894, while the sum is 110.

The spelling of 60999999999977 in words is "sixty trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seventy-seven".