61536066250 has 40 divisors (see below), whose sum is σ = 117064902240. Its totient is φ = 24247014000.

The previous prime is 61536066247. The next prime is 61536066253. The reversal of 61536066250 is 5266063516.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61536066247) and next prime (61536066253).

It is not an unprimeable number, because it can be changed into a prime (61536066253) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 283630 + ... + 451129.

It is an arithmetic number, because the mean of its divisors is an integer number (2926622556).

Almost surely, 2^61536066250 is an apocalyptic number.

61536066250 is a deficient number, since it is larger than the sum of its proper divisors (55528835990).

61536066250 is an equidigital number, since it uses as much as digits as its factorization.

61536066250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734848 (or 734833 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 61536066250 in words is "sixty-one billion, five hundred thirty-six million, sixty-six thousand, two hundred fifty".