61650457347636 has 18 divisors (see below), whose sum is σ = 155838656073282. Its totient is φ = 20550152449200.

The previous prime is 61650457347529. The next prime is 61650457347643. The reversal of 61650457347636 is 63674375405616.

61650457347636 is a `hidden beast` number, since 6 + 1 + 6 + 50 + 4 + 573 + 4 + 7 + 6 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59782741524900 + 1867715822736 = 7731930^2 + 1366644^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 856256352015 + ... + 856256352086.

Almost surely, 2^{61650457347636} is an apocalyptic number.

It is an amenable number.

61650457347636 is an abundant number, since it is smaller than the sum of its proper divisors (94188198725646).

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

61650457347636 is a wasteful number, since it uses less digits than its factorization.

61650457347636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712512704111 (or 1712512704106 counting only the distinct ones).

The product of its (nonzero) digits is 228614400, while the sum is 63.

The spelling of 61650457347636 in words is "sixty-one trillion, six hundred fifty billion, four hundred fifty-seven million, three hundred forty-seven thousand, six hundred thirty-six".