61700347550 has 48 divisors (see below), whose sum is σ = 115396989120. Its totient is φ = 24544007040.

The previous prime is 61700347531. The next prime is 61700347559. The reversal of 61700347550 is 5574300716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61700347559) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10190324 + ... + 10196376.

It is an arithmetic number, because the mean of its divisors is an integer number (2404103940).

Almost surely, 2^61700347550 is an apocalyptic number.

61700347550 is a deficient number, since it is larger than the sum of its proper divisors (53696641570).

61700347550 is a wasteful number, since it uses less digits than its factorization.

61700347550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7157 (or 7152 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 61700347550 in words is "sixty-one billion, seven hundred million, three hundred forty-seven thousand, five hundred fifty".