60211720661550 has 24 divisors (see below), whose sum is σ = 149325067241016. Its totient is φ = 16056458843040.

The previous prime is 60211720661549. The next prime is 60211720661557. The reversal of 60211720661550 is 5516602711206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60211720661557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200705735389 + ... + 200705735688.

It is an arithmetic number, because the mean of its divisors is an integer number (6221877801709).

Almost surely, 2^{60211720661550} is an apocalyptic number.

60211720661550 is an abundant number, since it is smaller than the sum of its proper divisors (89113346579466).

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

60211720661550 is a wasteful number, since it uses less digits than its factorization.

60211720661550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401411471092 (or 401411471087 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 60211720661550 in words is "sixty trillion, two hundred eleven billion, seven hundred twenty million, six hundred sixty-one thousand, five hundred fifty".