61551550598 has 32 divisors (see below), whose sum is σ = 96942800160. Its totient is φ = 29270142720.

The previous prime is 61551550591. The next prime is 61551550607. The reversal of 61551550598 is 89505515516.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61551550591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3467261 + ... + 3484967.

It is an arithmetic number, because the mean of its divisors is an integer number (3029462505).

Almost surely, 2^61551550598 is an apocalyptic number.

61551550598 is a deficient number, since it is larger than the sum of its proper divisors (35391249562).

61551550598 is a wasteful number, since it uses less digits than its factorization.

61551550598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18632.

The product of its (nonzero) digits is 1350000, while the sum is 50.

The spelling of 61551550598 in words is "sixty-one billion, five hundred fifty-one million, five hundred fifty thousand, five hundred ninety-eight".