161435301501 has 8 divisors (see below), whose sum is σ = 222190522624. Its totient is φ = 104151807360.

The previous prime is 161435301499. The next prime is 161435301557. The reversal of 161435301501 is 105103534161.

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

It is not a de Polignac number, because 161435301501 - 2¹ = 161435301499 is a prime.

It is a super-2 number, since 2×161435301501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161435301101) 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, 867931636 + ... + 867931821.

It is an arithmetic number, because the mean of its divisors is an integer number (27773815328).

Almost surely, 2^161435301501 is an apocalyptic number.

It is an amenable number.

161435301501 is a deficient number, since it is larger than the sum of its proper divisors (60755221123).

161435301501 is a wasteful number, since it uses less digits than its factorization.

161435301501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735863491.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 161435301501 its reverse (105103534161), we get a palindrome (266538835662).

The spelling of 161435301501 in words is "one hundred sixty-one billion, four hundred thirty-five million, three hundred one thousand, five hundred one".