165011646552 has 32 divisors (see below), whose sum is σ = 412907302080. Its totient is φ = 54953457440.

The previous prime is 165011646539. The next prime is 165011646581. The reversal of 165011646552 is 255646110561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124818 + ... + 3177185.

It is an arithmetic number, because the mean of its divisors is an integer number (12903353190).

Almost surely, 2^165011646552 is an apocalyptic number.

165011646552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165011646552 is an abundant number, since it is smaller than the sum of its proper divisors (247895655528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165011646552 is a wasteful number, since it uses less digits than its factorization.

165011646552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303103 (or 6303099 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 165011646552 in words is "one hundred sixty-five billion, eleven million, six hundred forty-six thousand, five hundred fifty-two".