61650234211 has 16 divisors (see below), whose sum is σ = 67013478400. Its totient is φ = 56523767328.

The previous prime is 61650234203. The next prime is 61650234277. The reversal of 61650234211 is 11243205616.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61650234211 - 2³ = 61650234203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61650232211) 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, 257091 + ... + 435196.

It is an arithmetic number, because the mean of its divisors is an integer number (4188342400).

Almost surely, 2^61650234211 is an apocalyptic number.

61650234211 is a deficient number, since it is larger than the sum of its proper divisors (5363244189).

61650234211 is a wasteful number, since it uses less digits than its factorization.

61650234211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692458.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 61650234211 its reverse (11243205616), we get a palindrome (72893439827).

The spelling of 61650234211 in words is "sixty-one billion, six hundred fifty million, two hundred thirty-four thousand, two hundred eleven".