61416980 has 24 divisors (see below), whose sum is σ = 129185280. Its totient is φ = 24526880.

The previous prime is 61416977. The next prime is 61416997. The reversal of 61416980 is 8961416.

It is a self number, because there is not a number n which added to its sum of digits gives 61416980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12245 + ... + 16515.

It is an arithmetic number, because the mean of its divisors is an integer number (5382720).

Almost surely, 2^61416980 is an apocalyptic number.

It is an amenable number.

61416980 is an abundant number, since it is smaller than the sum of its proper divisors (67768300).

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

61416980 is a wasteful number, since it uses less digits than its factorization.

61416980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999 (or 4997 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 61416980 is about 7836.8986212659. The cubic root of 61416980 is about 394.5446443115.

The spelling of 61416980 in words is "sixty-one million, four hundred sixteen thousand, nine hundred eighty".