65612561102 has 16 divisors (see below), whose sum is σ = 109862894592. Its totient is φ = 29130312120.

The previous prime is 65612561101. The next prime is 65612561137. The reversal of 65612561102 is 20116521656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65612561101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34677998 + ... + 34679889.

It is an arithmetic number, because the mean of its divisors is an integer number (6866430912).

Almost surely, 2^65612561102 is an apocalyptic number.

65612561102 is a deficient number, since it is larger than the sum of its proper divisors (44250333490).

65612561102 is a wasteful number, since it uses less digits than its factorization.

65612561102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69357943.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 65612561102 in words is "sixty-five billion, six hundred twelve million, five hundred sixty-one thousand, one hundred two".