161124154522 has 4 divisors (see below), whose sum is σ = 241686231786. Its totient is φ = 80562077260.

The previous prime is 161124154517. The next prime is 161124154537. The reversal of 161124154522 is 225451421161.

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

It can be written as a sum of positive squares in only one way, i.e., 114847109881 + 46277044641 = 338891^2 + 215121^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40281038629 + ... + 40281038632.

Almost surely, 2^161124154522 is an apocalyptic number.

161124154522 is a deficient number, since it is larger than the sum of its proper divisors (80562077264).

161124154522 is an equidigital number, since it uses as much as digits as its factorization.

161124154522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80562077263.

The product of its digits is 19200, while the sum is 34.

Adding to 161124154522 its reverse (225451421161), we get a palindrome (386575575683).

The spelling of 161124154522 in words is "one hundred sixty-one billion, one hundred twenty-four million, one hundred fifty-four thousand, five hundred twenty-two".