61201552135 has 16 divisors (see below), whose sum is σ = 74187066240. Its totient is φ = 48466836000.

The previous prime is 61201552133. The next prime is 61201552141. The reversal of 61201552135 is 53125510216.

It is not a de Polignac number, because 61201552135 - 2¹ = 61201552133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61201552097 and 61201552106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61201552133) 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, 54976 + ... + 354154.

It is an arithmetic number, because the mean of its divisors is an integer number (4636691640).

Almost surely, 2^61201552135 is an apocalyptic number.

61201552135 is a deficient number, since it is larger than the sum of its proper divisors (12985514105).

61201552135 is a wasteful number, since it uses less digits than its factorization.

61201552135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299598.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 61201552135 in words is "sixty-one billion, two hundred one million, five hundred fifty-two thousand, one hundred thirty-five".