61200656417 has 16 divisors (see below), whose sum is σ = 62872328064. Its totient is φ = 59537808000.

The previous prime is 61200656383. The next prime is 61200656423. The reversal of 61200656417 is 71465600216.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61200656417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61200656117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30431942 + ... + 30433952.

It is an arithmetic number, because the mean of its divisors is an integer number (3929520504).

Almost surely, 2^61200656417 is an apocalyptic number.

It is an amenable number.

61200656417 is a deficient number, since it is larger than the sum of its proper divisors (1671671647).

61200656417 is a wasteful number, since it uses less digits than its factorization.

61200656417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 61200656417 in words is "sixty-one billion, two hundred million, six hundred fifty-six thousand, four hundred seventeen".