61738665305356 has 24 divisors (see below), whose sum is σ = 122477514170480. Its totient is φ = 26995043938752.

The previous prime is 61738665305347. The next prime is 61738665305363. The reversal of 61738665305356 is 65350356683716.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31244262831 + ... + 31244264806.

Almost surely, 2^{61738665305356} is an apocalyptic number.

It is an amenable number.

61738665305356 is a deficient number, since it is larger than the sum of its proper divisors (60738848865124).

61738665305356 is a wasteful number, since it uses less digits than its factorization.

61738665305356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62488527673 (or 62488527671 counting only the distinct ones).

The product of its (nonzero) digits is 244944000, while the sum is 64.

The spelling of 61738665305356 in words is "sixty-one trillion, seven hundred thirty-eight billion, six hundred sixty-five million, three hundred five thousand, three hundred fifty-six".