161477042560730 has 64 divisors (see below), whose sum is σ = 314638712388000. Its totient is φ = 59313465007104.

The previous prime is 161477042560697. The next prime is 161477042560747. The reversal of 161477042560730 is 37065240774161.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 3119557609 + 161473923003121 = 55853^2 + 12707239^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249348512 + ... + 249995268.

Almost surely, 2^{161477042560730} is an apocalyptic number.

161477042560730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161477042560730 is a deficient number, since it is larger than the sum of its proper divisors (153161669827270).

161477042560730 is a wasteful number, since it uses less digits than its factorization.

161477042560730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656723.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 161477042560730 in words is "one hundred sixty-one trillion, four hundred seventy-seven billion, forty-two million, five hundred sixty thousand, seven hundred thirty".