61816995 has 24 divisors (see below), whose sum is σ = 108197856. Its totient is φ = 32646528.

The previous prime is 61816969. The next prime is 61817011. The reversal of 61816995 is 59961816.

61816995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61816995 - 2⁸ = 61816739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 61816995.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2034 + ... + 11303.

It is an arithmetic number, because the mean of its divisors is an integer number (4508244).

Almost surely, 2^61816995 is an apocalyptic number.

61816995 is a deficient number, since it is larger than the sum of its proper divisors (46380861).

61816995 is a wasteful number, since it uses less digits than its factorization.

61816995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13451 (or 13448 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 61816995 is about 7862.3784569302. The cubic root of 61816995 is about 395.3993610885.

The spelling of 61816995 in words is "sixty-one million, eight hundred sixteen thousand, nine hundred ninety-five".