1055165106501 has 72 divisors (see below), whose sum is σ = 1715009263968. Its totient is φ = 624341995200.

The previous prime is 1055165106461. The next prime is 1055165106521. The reversal of 1055165106501 is 1056015615501.

It is a happy number.

1055165106501 is a `hidden beast` number, since 1 + 0 + 551 + 6 + 51 + 0 + 6 + 50 + 1 = 666.

It is not a de Polignac number, because 1055165106501 - 2⁹ = 1055165105989 is a prime.

It is a super-2 number, since 2×1055165106501² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055165106521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 155602731 + ... + 155609511.

Almost surely, 2^{1055165106501} is an apocalyptic number.

1055165106501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1055165106501 is a deficient number, since it is larger than the sum of its proper divisors (659844157467).

1055165106501 is a wasteful number, since it uses less digits than its factorization.

1055165106501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10175 (or 10161 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 1055165106501 in words is "one trillion, fifty-five billion, one hundred sixty-five million, one hundred six thousand, five hundred one".