61654960 has 40 divisors (see below), whose sum is σ = 143825616. Its totient is φ = 24579840.

The previous prime is 61654933. The next prime is 61654963. The reversal of 61654960 is 6945616.

61654960 is a nontrivial binomial coefficient, being equal to C(11105, 2).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (61654963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26650 + ... + 28870.

Almost surely, 2^61654960 is an apocalyptic number.

61654960 is the 11104-th triangular number.

61654960 is the 3702-nd centered nonagonal number.

It is an amenable number.

61654960 is an abundant number, since it is smaller than the sum of its proper divisors (82170656).

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

61654960 is a wasteful number, since it uses less digits than its factorization.

61654960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581 (or 2575 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 61654960 is about 7852.0672437263. The cubic root of 61654960 is about 395.0535845695.

The spelling of 61654960 in words is "sixty-one million, six hundred fifty-four thousand, nine hundred sixty".