61563352650 has 24 divisors (see below), whose sum is σ = 152677114944. Its totient is φ = 16416894000.

The previous prime is 61563352637. The next prime is 61563352673. The reversal of 61563352650 is 5625336516.

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 11 ways as a sum of consecutive naturals, for example, 205211026 + ... + 205211325.

It is an arithmetic number, because the mean of its divisors is an integer number (6361546456).

Almost surely, 2^61563352650 is an apocalyptic number.

61563352650 is an abundant number, since it is smaller than the sum of its proper divisors (91113762294).

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

61563352650 is a wasteful number, since it uses less digits than its factorization.

61563352650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410422366 (or 410422361 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 61563352650 in words is "sixty-one billion, five hundred sixty-three million, three hundred fifty-two thousand, six hundred fifty".