61466205757 has 16 divisors (see below), whose sum is σ = 67488692544. Its totient is φ = 55516752000.

The previous prime is 61466205701. The next prime is 61466205769. The reversal of 61466205757 is 75750266416.

It is a cyclic number.

It is not a de Polignac number, because 61466205757 - 2¹⁹ = 61465681469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61466205757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61466209757) 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, 2158033 + ... + 2186329.

It is an arithmetic number, because the mean of its divisors is an integer number (4218043284).

Almost surely, 2^61466205757 is an apocalyptic number.

It is an amenable number.

61466205757 is a deficient number, since it is larger than the sum of its proper divisors (6022486787).

61466205757 is a wasteful number, since it uses less digits than its factorization.

61466205757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29580.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 61466205757 in words is "sixty-one billion, four hundred sixty-six million, two hundred five thousand, seven hundred fifty-seven".