165290003764 has 6 divisors (see below), whose sum is σ = 289257506594. Its totient is φ = 82645001880.

The previous prime is 165290003761. The next prime is 165290003779. The reversal of 165290003764 is 467300092561.

It can be written as a sum of positive squares in only one way, i.e., 159568291600 + 5721712164 = 399460^2 + 75642^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 165290003764.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165290003761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20661250467 + ... + 20661250474.

Almost surely, 2^165290003764 is an apocalyptic number.

It is an amenable number.

165290003764 is a deficient number, since it is larger than the sum of its proper divisors (123967502830).

165290003764 is a wasteful number, since it uses less digits than its factorization.

165290003764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41322500945 (or 41322500943 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 165290003764 in words is "one hundred sixty-five billion, two hundred ninety million, three thousand, seven hundred sixty-four".