61061375236 has 9 divisors (see below), whose sum is σ = 106858271541. Its totient is φ = 30530440512.

The previous prime is 61061375231. The next prime is 61061375237. The reversal of 61061375236 is 63257316016.

The square root of 61061375236 is 247106.

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

It can be written as a sum of positive squares in only one way, i.e., 11178832900 + 49882542336 = 105730^2 + 223344^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61061375231) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 432436 + ... + 555988.

Almost surely, 2^61061375236 is an apocalyptic number.

61061375236 is the 247106-th square number.

It is an amenable number.

61061375236 is a deficient number, since it is larger than the sum of its proper divisors (45796896305).

61061375236 is an frugal number, since it uses more digits than its factorization.

61061375236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247110 (or 123555 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 61061375236 in words is "sixty-one billion, sixty-one million, three hundred seventy-five thousand, two hundred thirty-six".