61203271855504 has 45 divisors (see below), whose sum is σ = 119019056855979. Its totient is φ = 30489090624480.

The previous prime is 61203271855501. The next prime is 61203271855543. The reversal of 61203271855504 is 40555817230216.

The square root of 61203271855504 is 7823252.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61203271855501) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8855917809 + ... + 8855924719.

Almost surely, 2^{61203271855504} is an apocalyptic number.

61203271855504 is the 7823252-nd square number.

It is an amenable number.

61203271855504 is a deficient number, since it is larger than the sum of its proper divisors (57815785000475).

61203271855504 is an frugal number, since it uses more digits than its factorization.

61203271855504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396 (or 7196 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 61203271855504 in words is "sixty-one trillion, two hundred three billion, two hundred seventy-one million, eight hundred fifty-five thousand, five hundred four".