36661965 has 8 divisors (see below), whose sum is σ = 58659168. Its totient is φ = 19553040.

The previous prime is 36661957. The next prime is 36661967. The reversal of 36661965 is 56916663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36661965 - 2³ = 36661957 is a prime.

It is a super-2 number, since 2×36661965² = 2688199355322450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36661967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222051 + ... + 1222080.

It is an arithmetic number, because the mean of its divisors is an integer number (7332396).

Almost surely, 2^36661965 is an apocalyptic number.

It is an amenable number.

36661965 is a deficient number, since it is larger than the sum of its proper divisors (21997203).

36661965 is a wasteful number, since it uses less digits than its factorization.

36661965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444139.

The product of its digits is 174960, while the sum is 42.

The square root of 36661965 is about 6054.9124684012. The cubic root of 36661965 is about 332.2042973732.

The spelling of 36661965 in words is "thirty-six million, six hundred sixty-one thousand, nine hundred sixty-five".