61300640415508 has 36 divisors (see below), whose sum is σ = 119302437844380. Its totient is φ = 27527938304256.

The previous prime is 61300640415503. The next prime is 61300640415523. The reversal of 61300640415508 is 80551404600316.

It can be written as a sum of positive squares in 6 ways, for example, as 1131887465604 + 60168752949904 = 1063902^2 + 7756852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61300640415503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1225399593 + ... + 1225449616.

Almost surely, 2^{61300640415508} is an apocalyptic number.

It is an amenable number.

61300640415508 is a deficient number, since it is larger than the sum of its proper divisors (58001797428872).

61300640415508 is a wasteful number, since it uses less digits than its factorization.

61300640415508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450849276 (or 2450849261 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 61300640415508 in words is "sixty-one trillion, three hundred billion, six hundred forty million, four hundred fifteen thousand, five hundred eight".