61106651533 has 2 divisors, whose sum is σ = 61106651534. Its totient is φ = 61106651532.

The previous prime is 61106651527. The next prime is 61106651563. The reversal of 61106651533 is 33515660116.

61106651533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57670581609 + 3436069924 = 240147^2 + 58618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61106651533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61106651492 and 61106651501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61106651503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30553325766 + 30553325767.

It is an arithmetic number, because the mean of its divisors is an integer number (30553325767).

Almost surely, 2^61106651533 is an apocalyptic number.

It is an amenable number.

61106651533 is a deficient number, since it is larger than the sum of its proper divisors (1).

61106651533 is an equidigital number, since it uses as much as digits as its factorization.

61106651533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 61106651533 in words is "sixty-one billion, one hundred six million, six hundred fifty-one thousand, five hundred thirty-three".