161959506483 has 16 divisors (see below), whose sum is σ = 221965409696. Its totient is φ = 104968120320.

The previous prime is 161959506461. The next prime is 161959506491. The reversal of 161959506483 is 384605959161.

It is not a de Polignac number, because 161959506483 - 2¹⁸ = 161959244339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161959576483) 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, 466798 + ... + 736083.

It is an arithmetic number, because the mean of its divisors is an integer number (13872838106).

Almost surely, 2^161959506483 is an apocalyptic number.

161959506483 is a deficient number, since it is larger than the sum of its proper divisors (60005903213).

161959506483 is a wasteful number, since it uses less digits than its factorization.

161959506483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204134.

The product of its (nonzero) digits is 6998400, while the sum is 57.

The spelling of 161959506483 in words is "one hundred sixty-one billion, nine hundred fifty-nine million, five hundred six thousand, four hundred eighty-three".