60611401621 has 2 divisors, whose sum is σ = 60611401622. Its totient is φ = 60611401620.

The previous prime is 60611401601. The next prime is 60611401663. The reversal of 60611401621 is 12610411606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41481468900 + 19129932721 = 203670^2 + 138311^2 .

It is a cyclic number.

It is not a de Polignac number, because 60611401621 - 2²⁹ = 60074530709 is a prime.

It is a super-2 number, since 2×60611401621² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 60611401621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60611401601) 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 as a sum of consecutive naturals, namely, 30305700810 + 30305700811.

It is an arithmetic number, because the mean of its divisors is an integer number (30305700811).

Almost surely, 2^60611401621 is an apocalyptic number.

It is an amenable number.

60611401621 is a deficient number, since it is larger than the sum of its proper divisors (1).

60611401621 is an equidigital number, since it uses as much as digits as its factorization.

60611401621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 60611401621 in words is "sixty billion, six hundred eleven million, four hundred one thousand, six hundred twenty-one".