161274750465 has 8 divisors (see below), whose sum is σ = 258039600768. Its totient is φ = 86013200240.

The previous prime is 161274750437. The next prime is 161274750563. The reversal of 161274750465 is 564057472161.

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

It is not a de Polignac number, because 161274750465 - 2¹⁵ = 161274717697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5375825001 + ... + 5375825030.

It is an arithmetic number, because the mean of its divisors is an integer number (32254950096).

Almost surely, 2^161274750465 is an apocalyptic number.

161274750465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161274750465 is a deficient number, since it is larger than the sum of its proper divisors (96764850303).

161274750465 is a wasteful number, since it uses less digits than its factorization.

161274750465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751650039.

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 161274750465 in words is "one hundred sixty-one billion, two hundred seventy-four million, seven hundred fifty thousand, four hundred sixty-five".