61055406645511 has 8 divisors (see below), whose sum is σ = 61510000541184. Its totient is φ = 60601473979800.

The previous prime is 61055406645419. The next prime is 61055406645521. The reversal of 61055406645511 is 11554660455016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61055406645511 - 2⁷ = 61055406645383 is a prime.

It is a super-2 number, since 2×61055406645511² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61055406645521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165122131 + ... + 165491476.

It is an arithmetic number, because the mean of its divisors is an integer number (7688750067648).

Almost surely, 2^{61055406645511} is an apocalyptic number.

61055406645511 is a deficient number, since it is larger than the sum of its proper divisors (454593895673).

61055406645511 is a wasteful number, since it uses less digits than its factorization.

61055406645511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330614981.

The product of its (nonzero) digits is 2160000, while the sum is 49.

The spelling of 61055406645511 in words is "sixty-one trillion, fifty-five billion, four hundred six million, six hundred forty-five thousand, five hundred eleven".