61102205535 has 32 divisors (see below), whose sum is σ = 111741419520. Its totient is φ = 27929518848.

The previous prime is 61102205473. The next prime is 61102205551. The reversal of 61102205535 is 53550220116.

It is a happy number.

It is not a de Polignac number, because 61102205535 - 2¹² = 61102201439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1225371 + ... + 1274259.

It is an arithmetic number, because the mean of its divisors is an integer number (3491919360).

Almost surely, 2^61102205535 is an apocalyptic number.

61102205535 is a deficient number, since it is larger than the sum of its proper divisors (50639213985).

61102205535 is a wasteful number, since it uses less digits than its factorization.

61102205535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60807.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 61102205535 in words is "sixty-one billion, one hundred two million, two hundred five thousand, five hundred thirty-five".