116660772 has 18 divisors (see below), whose sum is σ = 294892598. Its totient is φ = 38886912.

The previous prime is 116660771. The next prime is 116660773. The reversal of 116660772 is 277066611.

It is an interprime number because it is at equal distance from previous prime (116660771) and next prime (116660773).

It can be written as a sum of positive squares in only one way, i.e., 112021056 + 4639716 = 10584^2 + 2154^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3240577 = 116660772 / (1 + 1 + 6 + 6 + 6 + 0 + 7 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (116660771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1620253 + ... + 1620324.

Almost surely, 2^116660772 is an apocalyptic number.

116660772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

116660772 is an abundant number, since it is smaller than the sum of its proper divisors (178231826).

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

116660772 is a wasteful number, since it uses less digits than its factorization.

116660772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240587 (or 3240582 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 116660772 is about 10800.9616238555. The cubic root of 116660772 is about 488.6241733204.

The spelling of 116660772 in words is "one hundred sixteen million, six hundred sixty thousand, seven hundred seventy-two".