161055366034415 has 32 divisors (see below), whose sum is σ = 197788266504000. Its totient is φ = 125859606617088.

The previous prime is 161055366034411. The next prime is 161055366034427. The reversal of 161055366034415 is 514430663550161.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 161055366034415 - 2² = 161055366034411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161055366034411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32043587 + ... + 36727403.

It is an arithmetic number, because the mean of its divisors is an integer number (6180883328250).

Almost surely, 2^{161055366034415} is an apocalyptic number.

161055366034415 is a deficient number, since it is larger than the sum of its proper divisors (36732900469585).

161055366034415 is a wasteful number, since it uses less digits than its factorization.

161055366034415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684619.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 161055366034415 in words is "one hundred sixty-one trillion, fifty-five billion, three hundred sixty-six million, thirty-four thousand, four hundred fifteen".