61616777301 has 16 divisors (see below), whose sum is σ = 96088542400. Its totient is φ = 38915859024.

The previous prime is 61616777297. The next prime is 61616777347. The reversal of 61616777301 is 10377761616.

It is not a de Polignac number, because 61616777301 - 2² = 61616777297 is a prime.

It is a super-2 number, since 2×61616777301² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61616777351) by changing a digit.

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, 60054826 + ... + 60055851.

It is an arithmetic number, because the mean of its divisors is an integer number (6005533900).

Almost surely, 2^61616777301 is an apocalyptic number.

It is an amenable number.

61616777301 is a deficient number, since it is larger than the sum of its proper divisors (34471765099).

61616777301 is a wasteful number, since it uses less digits than its factorization.

61616777301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120110705 (or 120110699 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The spelling of 61616777301 in words is "sixty-one billion, six hundred sixteen million, seven hundred seventy-seven thousand, three hundred one".