61260664 has 16 divisors (see below), whose sum is σ = 114959520. Its totient is φ = 30604800.

The previous prime is 61260659. The next prime is 61260677. The reversal of 61260664 is 46606216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10417 + ... + 15199.

It is an arithmetic number, because the mean of its divisors is an integer number (7184970).

Almost surely, 2^61260664 is an apocalyptic number.

It is an amenable number.

61260664 is a deficient number, since it is larger than the sum of its proper divisors (53698856).

61260664 is a wasteful number, since it uses less digits than its factorization.

61260664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390 (or 6386 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 61260664 is about 7826.9191895662. The cubic root of 61260664 is about 394.2096336037.

The spelling of 61260664 in words is "sixty-one million, two hundred sixty thousand, six hundred sixty-four".