165302257421355 has 64 divisors (see below), whose sum is σ = 268468024320000. Its totient is φ = 86838452692992.

The previous prime is 165302257421333. The next prime is 165302257421479. The reversal of 165302257421355 is 553124752203561.

It is not a de Polignac number, because 165302257421355 - 2⁷ = 165302257421227 is a prime.

It is a super-3 number, since 3×165302257421355³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165302257421298 and 165302257421307.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2748182821 + ... + 2748242969.

It is an arithmetic number, because the mean of its divisors is an integer number (4194812880000).

Almost surely, 2^{165302257421355} is an apocalyptic number.

165302257421355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165302257421355 is a deficient number, since it is larger than the sum of its proper divisors (103165766898645).

165302257421355 is a wasteful number, since it uses less digits than its factorization.

165302257421355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65708.

The product of its (nonzero) digits is 7560000, while the sum is 51.

The spelling of 165302257421355 in words is "one hundred sixty-five trillion, three hundred two billion, two hundred fifty-seven million, four hundred twenty-one thousand, three hundred fifty-five".