61065651 has 16 divisors (see below), whose sum is σ = 84030464. Its totient is φ = 39416544.

The previous prime is 61065647. The next prime is 61065661. The reversal of 61065651 is 15656016.

It is not a de Polignac number, because 61065651 - 2² = 61065647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61065661) 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, 23520 + ... + 25986.

It is an arithmetic number, because the mean of its divisors is an integer number (5251904).

Almost surely, 2^61065651 is an apocalyptic number.

61065651 is a deficient number, since it is larger than the sum of its proper divisors (22964813).

61065651 is a wasteful number, since it uses less digits than its factorization.

61065651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 61065651 is about 7814.4514202854. The cubic root of 61065651 is about 393.7908889762.

It can be divided in two parts, 61065 and 651, that added together give a palindrome (61716).

The spelling of 61065651 in words is "sixty-one million, sixty-five thousand, six hundred fifty-one".