716665740 has 96 divisors (see below), whose sum is σ = 2393072640. Its totient is φ = 156685056.

The previous prime is 716665727. The next prime is 716665793. The reversal of 716665740 is 47566617.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 716665692 and 716665701.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27435 + ... + 46754.

It is an arithmetic number, because the mean of its divisors is an integer number (24927840).

Almost surely, 2^716665740 is an apocalyptic number.

716665740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

716665740 is an abundant number, since it is smaller than the sum of its proper divisors (1676406900).

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

716665740 is a wasteful number, since it uses less digits than its factorization.

716665740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74231 (or 74229 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 716665740 is about 26770.6133661521. The cubic root of 716665740 is about 894.8952739941.

The spelling of 716665740 in words is "seven hundred sixteen million, six hundred sixty-five thousand, seven hundred forty".