61141604500 has 24 divisors (see below), whose sum is σ = 133533265320. Its totient is φ = 24456641600.

The previous prime is 61141604453. The next prime is 61141604501. The reversal of 61141604500 is 540614116.

It can be written as a sum of positive squares in 4 ways, for example, as 711182224 + 60430422276 = 26668^2 + 245826^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61141604501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61141105 + ... + 61142104.

It is an arithmetic number, because the mean of its divisors is an integer number (5563886055).

Almost surely, 2^61141604500 is an apocalyptic number.

It is an amenable number.

61141604500 is an abundant number, since it is smaller than the sum of its proper divisors (72391660820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61141604500 is a wasteful number, since it uses less digits than its factorization.

61141604500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122283228 (or 122283216 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 61141604500 in words is "sixty-one billion, one hundred forty-one million, six hundred four thousand, five hundred".