161048227490 has 8 divisors (see below), whose sum is σ = 289886809500. Its totient is φ = 64419290992.

The previous prime is 161048227393. The next prime is 161048227523. The reversal of 161048227490 is 94722840161.

It can be written as a sum of positive squares in 2 ways, for example, as 153719669041 + 7328558449 = 392071^2 + 85607^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8052411365 + ... + 8052411384.

Almost surely, 2^161048227490 is an apocalyptic number.

161048227490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161048227490 is a deficient number, since it is larger than the sum of its proper divisors (128838582010).

161048227490 is a wasteful number, since it uses less digits than its factorization.

161048227490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16104822756.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 161048227490 in words is "one hundred sixty-one billion, forty-eight million, two hundred twenty-seven thousand, four hundred ninety".