116657646 has 32 divisors (see below), whose sum is σ = 267148800. Its totient is φ = 33267936.

The previous prime is 116657627. The next prime is 116657647. The reversal of 116657646 is 646756611.

It is a happy number.

It is a super-2 number, since 2×116657646² = 27218012740522632, which contains 22 as substring.

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 = 116657598 and 116657607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116657647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22840 + ... + 27476.

It is an arithmetic number, because the mean of its divisors is an integer number (8348400).

Almost surely, 2^116657646 is an apocalyptic number.

116657646 is an abundant number, since it is smaller than the sum of its proper divisors (150491154).

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

116657646 is a wasteful number, since it uses less digits than its factorization.

116657646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248.

The product of its digits is 181440, while the sum is 42.

The square root of 116657646 is about 10800.8169135487. The cubic root of 116657646 is about 488.6198089490.

The spelling of 116657646 in words is "one hundred sixteen million, six hundred fifty-seven thousand, six hundred forty-six".