190161023653 has 4 divisors (see below), whose sum is σ = 191549060460. Its totient is φ = 188772986848.

The previous prime is 190161023609. The next prime is 190161023659. The reversal of 190161023653 is 356320161091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85920506884 + 104240516769 = 293122^2 + 322863^2 .

It is a cyclic number.

It is not a de Polignac number, because 190161023653 - 2¹³ = 190161015461 is a prime.

It is a super-3 number, since 3×190161023653³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190161023659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694018198 + ... + 694018471.

It is an arithmetic number, because the mean of its divisors is an integer number (47887265115).

Almost surely, 2^190161023653 is an apocalyptic number.

It is an amenable number.

190161023653 is a deficient number, since it is larger than the sum of its proper divisors (1388036807).

190161023653 is a wasteful number, since it uses less digits than its factorization.

190161023653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388036806.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 190161023653 in words is "one hundred ninety billion, one hundred sixty-one million, twenty-three thousand, six hundred fifty-three".