61146555604 has 24 divisors (see below), whose sum is σ = 113313150720. Its totient is φ = 28771756416.

The previous prime is 61146555601. The next prime is 61146555619. The reversal of 61146555604 is 40655564116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61146555601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665917 + ... + 752155.

It is an arithmetic number, because the mean of its divisors is an integer number (4721381280).

Almost surely, 2^61146555604 is an apocalyptic number.

It is an amenable number.

61146555604 is a deficient number, since it is larger than the sum of its proper divisors (52166595116).

61146555604 is a wasteful number, since it uses less digits than its factorization.

61146555604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96687 (or 96685 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 61146555604 in words is "sixty-one billion, one hundred forty-six million, five hundred fifty-five thousand, six hundred four".