10165015550 has 48 divisors (see below), whose sum is σ = 19707987120. Its totient is φ = 3897020160.

The previous prime is 10165015529. The next prime is 10165015583. The reversal of 10165015550 is 5551056101.

It is a happy number.

It is a super-2 number, since 2×10165015550² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82946 + ... + 164954.

It is an arithmetic number, because the mean of its divisors is an integer number (410583065).

Almost surely, 2^10165015550 is an apocalyptic number.

10165015550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10165015550 is a deficient number, since it is larger than the sum of its proper divisors (9542971570).

10165015550 is a wasteful number, since it uses less digits than its factorization.

10165015550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82125 (or 82120 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 10165015550 in words is "ten billion, one hundred sixty-five million, fifteen thousand, five hundred fifty".