61614664 has 32 divisors (see below), whose sum is σ = 123055200. Its totient is φ = 28821760.

The previous prime is 61614659. The next prime is 61614689. The reversal of 61614664 is 46641616.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 23079 + ... + 25609.

It is an arithmetic number, because the mean of its divisors is an integer number (3845475).

Almost surely, 2^61614664 is an apocalyptic number.

It is an amenable number.

61614664 is a deficient number, since it is larger than the sum of its proper divisors (61440536).

61614664 is a wasteful number, since it uses less digits than its factorization.

61614664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733 (or 2729 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 61614664 is about 7849.5008758519. The cubic root of 61614664 is about 394.9675003972.

The spelling of 61614664 in words is "sixty-one million, six hundred fourteen thousand, six hundred sixty-four".