61528555632196 has 9 divisors (see below), whose sum is σ = 107674999810399. Its totient is φ = 30764269972084.

The previous prime is 61528555632191. The next prime is 61528555632199. The reversal of 61528555632196 is 69123655582516.

The square root of 61528555632196 is 7844014.

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

It is a super-2 number, since 2×61528555632196² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61528555632191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13727025 + ... + 17649031.

Almost surely, 2^{61528555632196} is an apocalyptic number.

61528555632196 is the 7844014-th square number.

It is an amenable number.

61528555632196 is a deficient number, since it is larger than the sum of its proper divisors (46146444178203).

61528555632196 is an frugal number, since it uses more digits than its factorization.

61528555632196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7844018 (or 3922009 counting only the distinct ones).

The product of its digits is 116640000, while the sum is 64.

The spelling of 61528555632196 in words is "sixty-one trillion, five hundred twenty-eight billion, five hundred fifty-five million, six hundred thirty-two thousand, one hundred ninety-six".