161390296699048 has 16 divisors (see below), whose sum is σ = 302607036554580. Its totient is φ = 80695086951168.

The previous prime is 161390296699043. The next prime is 161390296699061. The reversal of 161390296699048 is 840996692093161.

It can be written as a sum of positive squares in 2 ways, for example, as 102360609144964 + 59029687554084 = 10117342^2 + 7683078^2 .

It is a super-3 number, since 3×161390296699048³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (161390296699043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4663440 + ... + 18561472.

Almost surely, 2^{161390296699048} is an apocalyptic number.

It is an amenable number.

161390296699048 is a deficient number, since it is larger than the sum of its proper divisors (141216739855532).

161390296699048 is a wasteful number, since it uses less digits than its factorization.

161390296699048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15349596 (or 15349592 counting only the distinct ones).

The product of its (nonzero) digits is 272097792, while the sum is 73.

The spelling of 161390296699048 in words is "one hundred sixty-one trillion, three hundred ninety billion, two hundred ninety-six million, six hundred ninety-nine thousand, forty-eight".