116639649 has 48 divisors (see below), whose sum is σ = 202847040. Its totient is φ = 66044160.

The previous prime is 116639641. The next prime is 116639683. The reversal of 116639649 is 946936611.

116639649 is a `hidden beast` number, since 1 + 1 + 6 + 639 + 6 + 4 + 9 = 666.

It is not a de Polignac number, because 116639649 - 2³ = 116639641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116639641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172977 + ... + 173649.

It is an arithmetic number, because the mean of its divisors is an integer number (4225980).

Almost surely, 2^116639649 is an apocalyptic number.

It is an amenable number.

116639649 is a deficient number, since it is larger than the sum of its proper divisors (86207391).

116639649 is a wasteful number, since it uses less digits than its factorization.

116639649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 814 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 116639649 is about 10799.9837499878. The cubic root of 116639649 is about 488.5946808834.

It can be divided in two parts, 11663 and 9649, that added together give a palindrome (21312).

The spelling of 116639649 in words is "one hundred sixteen million, six hundred thirty-nine thousand, six hundred forty-nine".