61650424552405 has 16 divisors (see below), whose sum is σ = 79672656913920. Its totient is φ = 45525702201408.

The previous prime is 61650424552331. The next prime is 61650424552421. The reversal of 61650424552405 is 50425542405616.

It is not a de Polignac number, because 61650424552405 - 2¹⁹ = 61650424028117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4058565 + ... + 11822554.

It is an arithmetic number, because the mean of its divisors is an integer number (4979541057120).

Almost surely, 2^{61650424552405} is an apocalyptic number.

61650424552405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61650424552405 is a deficient number, since it is larger than the sum of its proper divisors (18022232361515).

61650424552405 is a wasteful number, since it uses less digits than its factorization.

61650424552405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15940860.

The product of its (nonzero) digits is 5760000, while the sum is 49.

The spelling of 61650424552405 in words is "sixty-one trillion, six hundred fifty billion, four hundred twenty-four million, five hundred fifty-two thousand, four hundred five".