161022283547 has 4 divisors (see below), whose sum is σ = 162251461416. Its totient is φ = 159793105680.

The previous prime is 161022283531. The next prime is 161022283571. The reversal of 161022283547 is 745382220161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161022283547 - 2⁴ = 161022283531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161022273547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614588738 + ... + 614588999.

It is an arithmetic number, because the mean of its divisors is an integer number (40562865354).

Almost surely, 2^161022283547 is an apocalyptic number.

161022283547 is a deficient number, since it is larger than the sum of its proper divisors (1229177869).

161022283547 is a wasteful number, since it uses less digits than its factorization.

161022283547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229177868.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 161022283547 in words is "one hundred sixty-one billion, twenty-two million, two hundred eighty-three thousand, five hundred forty-seven".