61816716 has 48 divisors (see below), whose sum is σ = 172597600. Its totient is φ = 19020096.

The previous prime is 61816691. The next prime is 61816717. The reversal of 61816716 is 61761816.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61816717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20611 + ... + 23418.

Almost surely, 2^61816716 is an apocalyptic number.

It is an amenable number.

61816716 is an abundant number, since it is smaller than the sum of its proper divisors (110780884).

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

61816716 is a wasteful number, since it uses less digits than its factorization.

61816716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44055 (or 44047 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 61816716 is about 7862.3607141876. The cubic root of 61816716 is about 395.3987662328.

The spelling of 61816716 in words is "sixty-one million, eight hundred sixteen thousand, seven hundred sixteen".