61434501665363 has 16 divisors (see below), whose sum is σ = 63085916705952. Its totient is φ = 59790388896000.

The previous prime is 61434501665309. The next prime is 61434501665389. The reversal of 61434501665363 is 36356610543416.

It is a cyclic number.

It is not a de Polignac number, because 61434501665363 - 2¹⁰ = 61434501664339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61434501665393) 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, 342731120 + ... + 342910322.

It is an arithmetic number, because the mean of its divisors is an integer number (3942869794122).

Almost surely, 2^{61434501665363} is an apocalyptic number.

61434501665363 is a deficient number, since it is larger than the sum of its proper divisors (1651415040589).

61434501665363 is a wasteful number, since it uses less digits than its factorization.

61434501665363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199526.

The product of its (nonzero) digits is 13996800, while the sum is 53.

The spelling of 61434501665363 in words is "sixty-one trillion, four hundred thirty-four billion, five hundred one million, six hundred sixty-five thousand, three hundred sixty-three".