161133900758 has 8 divisors (see below), whose sum is σ = 242784712128. Its totient is φ = 80205663384.

The previous prime is 161133900727. The next prime is 161133900833. The reversal of 161133900758 is 857009331161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×161133900758⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180642941 + ... + 180643832.

It is an arithmetic number, because the mean of its divisors is an integer number (30348089016).

Almost surely, 2^161133900758 is an apocalyptic number.

161133900758 is a deficient number, since it is larger than the sum of its proper divisors (81650811370).

161133900758 is a wasteful number, since it uses less digits than its factorization.

161133900758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361286998.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 161133900758 in words is "one hundred sixty-one billion, one hundred thirty-three million, nine hundred thousand, seven hundred fifty-eight".