161314026749 has 8 divisors (see below), whose sum is σ = 172147995648. Its totient is φ = 150629492160.

The previous prime is 161314026721. The next prime is 161314026779. The reversal of 161314026749 is 947620413161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161314026749 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 (161314026719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37356347 + ... + 37360664.

It is an arithmetic number, because the mean of its divisors is an integer number (21518499456).

Almost surely, 2^161314026749 is an apocalyptic number.

It is an amenable number.

161314026749 is a deficient number, since it is larger than the sum of its proper divisors (10833968899).

161314026749 is a wasteful number, since it uses less digits than its factorization.

161314026749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74717155.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 161314026749 in words is "one hundred sixty-one billion, three hundred fourteen million, twenty-six thousand, seven hundred forty-nine".