162053770421 has 8 divisors (see below), whose sum is σ = 172172692920. Its totient is φ = 152236905408.

The previous prime is 162053770339. The next prime is 162053770429. The reversal of 162053770421 is 124077350261.

162053770421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 101690194321 + 60363576100 = 318889^2 + 245690^2 .

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-162053770421 is a prime.

It is a super-2 number, since 2×162053770421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162053770429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75513266 + ... + 75515411.

It is an arithmetic number, because the mean of its divisors is an integer number (21521586615).

Almost surely, 2^162053770421 is an apocalyptic number.

It is an amenable number.

162053770421 is a deficient number, since it is larger than the sum of its proper divisors (10118922499).

162053770421 is a wasteful number, since it uses less digits than its factorization.

162053770421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151028743.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 162053770421 in words is "one hundred sixty-two billion, fifty-three million, seven hundred seventy thousand, four hundred twenty-one".