61476555280 has 80 divisors (see below), whose sum is σ = 164938086144. Its totient is φ = 20873018880.

The previous prime is 61476555271. The next prime is 61476555317. The reversal of 61476555280 is 8255567416.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475231 + ... + 590590.

Almost surely, 2^61476555280 is an apocalyptic number.

It is an amenable number.

61476555280 is an abundant number, since it is smaller than the sum of its proper divisors (103461530864).

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

61476555280 is a wasteful number, since it uses less digits than its factorization.

61476555280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065944 (or 1065938 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 61476555280 in words is "sixty-one billion, four hundred seventy-six million, five hundred fifty-five thousand, two hundred eighty".