165377602653 has 4 divisors (see below), whose sum is σ = 220503470208. Its totient is φ = 110251735100.

The previous prime is 165377602613. The next prime is 165377602657. The reversal of 165377602653 is 356206773561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165377602653 - 2¹⁰ = 165377601629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165377602596 and 165377602605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165377602657) 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, 27562933773 + ... + 27562933778.

It is an arithmetic number, because the mean of its divisors is an integer number (55125867552).

Almost surely, 2^165377602653 is an apocalyptic number.

It is an amenable number.

165377602653 is a deficient number, since it is larger than the sum of its proper divisors (55125867555).

165377602653 is an equidigital number, since it uses as much as digits as its factorization.

165377602653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55125867554.

The product of its (nonzero) digits is 4762800, while the sum is 51.

The spelling of 165377602653 in words is "one hundred sixty-five billion, three hundred seventy-seven million, six hundred two thousand, six hundred fifty-three".