161064140143355 has 96 divisors (see below), whose sum is σ = 216820648423680. Its totient is φ = 114500456928000.

The previous prime is 161064140143339. The next prime is 161064140143367. The reversal of 161064140143355 is 553341041460161.

It is a happy number.

It is not a de Polignac number, because 161064140143355 - 2⁴ = 161064140143339 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1014619340 + ... + 1014778070.

It is an arithmetic number, because the mean of its divisors is an integer number (2258548421080).

Almost surely, 2^{161064140143355} is an apocalyptic number.

161064140143355 is a deficient number, since it is larger than the sum of its proper divisors (55756508280325).

161064140143355 is a wasteful number, since it uses less digits than its factorization.

161064140143355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159193 (or 159170 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 161064140143355 in words is "one hundred sixty-one trillion, sixty-four billion, one hundred forty million, one hundred forty-three thousand, three hundred fifty-five".