61765416 has 40 divisors (see below), whose sum is σ = 173002170. Its totient is φ = 20588256.

The previous prime is 61765411. The next prime is 61765441. The reversal of 61765416 is 61456716.

It can be written as a sum of positive squares in only one way, i.e., 39012516 + 22752900 = 6246^2 + 4770^2 .

It is a super-2 number, since 2×61765416² = 7629933227306112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61765411) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 47011 + ... + 48306.

Almost surely, 2^61765416 is an apocalyptic number.

It is an amenable number.

61765416 is an abundant number, since it is smaller than the sum of its proper divisors (111236754).

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

61765416 is a wasteful number, since it uses less digits than its factorization.

61765416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95335 (or 95322 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 61765416 is about 7859.0976581284. The cubic root of 61765416 is about 395.2893590926.

The spelling of 61765416 in words is "sixty-one million, seven hundred sixty-five thousand, four hundred sixteen".