161062835205563 has 32 divisors (see below), whose sum is σ = 162901551176640. Its totient is φ = 159237715253760.

The previous prime is 161062835205539. The next prime is 161062835205577. The reversal of 161062835205563 is 365502538260161.

It is not a de Polignac number, because 161062835205563 - 2¹⁰ = 161062835204539 is a prime.

It is a super-2 number, since 2×161062835205563² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161062835505563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42418442981 + ... + 42418446777.

It is an arithmetic number, because the mean of its divisors is an integer number (5090673474270).

Almost surely, 2^{161062835205563} is an apocalyptic number.

161062835205563 is a deficient number, since it is larger than the sum of its proper divisors (1838715971077).

161062835205563 is a wasteful number, since it uses less digits than its factorization.

161062835205563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047.

The product of its (nonzero) digits is 7776000, while the sum is 53.

The spelling of 161062835205563 in words is "one hundred sixty-one trillion, sixty-two billion, eight hundred thirty-five million, two hundred five thousand, five hundred sixty-three".