161357753653 has 8 divisors (see below), whose sum is σ = 165848391680. Its totient is φ = 156873937680.

The previous prime is 161357753603. The next prime is 161357753671. The reversal of 161357753653 is 356357753161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161357753653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161357753653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161357753603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1657533 + ... + 1752178.

It is an arithmetic number, because the mean of its divisors is an integer number (20731048960).

Almost surely, 2^161357753653 is an apocalyptic number.

It is an amenable number.

161357753653 is a deficient number, since it is larger than the sum of its proper divisors (4490638027).

161357753653 is a wasteful number, since it uses less digits than its factorization.

161357753653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411027.

The product of its digits is 5953500, while the sum is 52.

The spelling of 161357753653 in words is "one hundred sixty-one billion, three hundred fifty-seven million, seven hundred fifty-three thousand, six hundred fifty-three".