61303010650 has 144 divisors (see below), whose sum is σ = 141067116216. Its totient is φ = 19693793280.

The previous prime is 61303010623. The next prime is 61303010707. The reversal of 61303010650 is 5601030316.

It can be written as a sum of positive squares in 12 ways, for example, as 4014109449 + 57288901201 = 63357^2 + 239351^2 .

It is a super-2 number, since 2×61303010650² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9701292 + ... + 9707608.

Almost surely, 2^61303010650 is an apocalyptic number.

61303010650 is an abundant number, since it is smaller than the sum of its proper divisors (79764105566).

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

61303010650 is a wasteful number, since it uses less digits than its factorization.

61303010650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6593 (or 6581 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 61303010650 its reverse (5601030316), we get a palindrome (66904040966).

The spelling of 61303010650 in words is "sixty-one billion, three hundred three million, ten thousand, six hundred fifty".