161133023204351 has 16 divisors (see below), whose sum is σ = 176870710080000. Its totient is φ = 145579331251200.

The previous prime is 161133023204239. The next prime is 161133023204381. The reversal of 161133023204351 is 153402320331161.

It is not a de Polignac number, because 161133023204351 - 2⁴² = 156734976693247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161133023204381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60101570 + ... + 62725311.

It is an arithmetic number, because the mean of its divisors is an integer number (11054419380000).

Almost surely, 2^{161133023204351} is an apocalyptic number.

161133023204351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

161133023204351 is a deficient number, since it is larger than the sum of its proper divisors (15737686875649).

161133023204351 is a wasteful number, since it uses less digits than its factorization.

161133023204351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122827630.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 161133023204351 in words is "one hundred sixty-one trillion, one hundred thirty-three billion, twenty-three million, two hundred four thousand, three hundred fifty-one".