153440161666531 has 8 divisors (see below), whose sum is σ = 161526628817600. Its totient is φ = 145354761432360.

The previous prime is 153440161666499. The next prime is 153440161666633. The reversal of 153440161666531 is 135666161044351.

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

It is a cyclic number.

It is not a de Polignac number, because 153440161666531 - 2⁵ = 153440161666499 is a prime.

It is a super-2 number, since 2×153440161666531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153440161666031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266434005 + ... + 267009286.

It is an arithmetic number, because the mean of its divisors is an integer number (20190828602200).

Almost surely, 2^{153440161666531} is an apocalyptic number.

153440161666531 is a deficient number, since it is larger than the sum of its proper divisors (8086467151069).

153440161666531 is a wasteful number, since it uses less digits than its factorization.

153440161666531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533458449.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 153440161666531 in words is "one hundred fifty-three trillion, four hundred forty billion, one hundred sixty-one million, six hundred sixty-six thousand, five hundred thirty-one".