61965366 has 32 divisors (see below), whose sum is σ = 125798400. Its totient is φ = 20346720.

The previous prime is 61965353. The next prime is 61965367. The reversal of 61965366 is 66356916.

61965366 = T₁₆₆ + T₁₆₇ + ... + T₇₂₁.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61965367) 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, 159100 + ... + 159488.

It is an arithmetic number, because the mean of its divisors is an integer number (3931200).

Almost surely, 2^61965366 is an apocalyptic number.

61965366 is an abundant number, since it is smaller than the sum of its proper divisors (63833034).

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

61965366 is a wasteful number, since it uses less digits than its factorization.

61965366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

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

The square root of 61965366 is about 7871.8083055928. The cubic root of 61965366 is about 395.7154495969.

The spelling of 61965366 in words is "sixty-one million, nine hundred sixty-five thousand, three hundred sixty-six".