61005110550501 has 16 divisors (see below), whose sum is σ = 87604352561600. Its totient is φ = 37538490458880.

The previous prime is 61005110550479. The next prime is 61005110550557. The reversal of 61005110550501 is 10505501150016.

It is not a de Polignac number, because 61005110550501 - 2⁵ = 61005110550469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005110550581) 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, 64441435 + ... + 65381256.

It is an arithmetic number, because the mean of its divisors is an integer number (5475272035100).

Almost surely, 2^{61005110550501} is an apocalyptic number.

It is an amenable number.

61005110550501 is a deficient number, since it is larger than the sum of its proper divisors (26599242011099).

61005110550501 is a wasteful number, since it uses less digits than its factorization.

61005110550501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129834756.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 61005110550501 in words is "sixty-one trillion, five billion, one hundred ten million, five hundred fifty thousand, five hundred one".