61552617604 has 27 divisors (see below), whose sum is σ = 114441786543. Its totient is φ = 28961968128.

The previous prime is 61552617571. The next prime is 61552617611. The reversal of 61552617604 is 40671625516.

The square root of 61552617604 is 248098.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1075971204 + 60476646400 = 32802^2 + 245920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8431684 + ... + 8438980.

Almost surely, 2^61552617604 is an apocalyptic number.

61552617604 is the 248098-th square number.

It is an amenable number.

61552617604 is a deficient number, since it is larger than the sum of its proper divisors (52889168939).

61552617604 is an frugal number, since it uses more digits than its factorization.

61552617604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14632 (or 7316 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 61552617604 in words is "sixty-one billion, five hundred fifty-two million, six hundred seventeen thousand, six hundred four".